From rutgervlek at gmail.com  Sun Aug  2 15:23:12 2026
From: rutgervlek at gmail.com (Rutger Vlek)
Date: Sun, 2 Aug 2026 15:23:12 +0200
Subject: [sdiy] 2164 temperature compensation
Message-ID: <CAJ2Txe0KnJPcU60WYOr0x_aHz58zP+0vMyR5=rk8Nwr-w42OSg@mail.gmail.com>

Dear list,

I'm working on a sawtooth oscillator for a new personal synth project and
have a question about temperature compensation with the 2164, as proposed
in the datasheet (Figure 11):
https://www.soundsemiconductor.com/downloads/ssi2164datasheet.pdf

I noticed that the proposed compensation scheme takes a bipolar CV input
(-5 to +5V) and generates a temperature compensated control signal for the
final exponentiator (VCA2) that is also bipolar in nature, centered around
the unity-gain point (0V) of the 2164. I wondered: was this chosen for
practical reasons, or does the temperature compensation (or expo
conversion) work more accurately around the center-point of the 2164?

The reason I ask is because I'd like to adapt this scheme to work with a
unipolar CV coming from a MCU. I'm also wondering if I can drop VCA3, as
high frequency compensation of non-temperature dependent effects can be
entirely done inside the MCU.

Best,

Rutger
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From btremblay at me.com  Sun Aug  2 16:14:48 2026
From: btremblay at me.com (Benjamin Tremblay)
Date: Sun, 2 Aug 2026 10:14:48 -0400
Subject: [sdiy] 2164 temperature compensation
In-Reply-To: <CAJ2Txe0KnJPcU60WYOr0x_aHz58zP+0vMyR5=rk8Nwr-w42OSg@mail.gmail.com>
References: <CAJ2Txe0KnJPcU60WYOr0x_aHz58zP+0vMyR5=rk8Nwr-w42OSg@mail.gmail.com>
Message-ID: <8673D0F5-E3AA-4999-B63E-CCBF1A84ED03@me.com>

Replying to this so I can monitor responses, because I am curious. I noticed that the 2164 could operate at low supply voltage. But i interpreted the specs to mean you need at least a trickle of negative voltage to get the correct range out of this device. Maybe in this circuit where it?s not being used as a vca it?s okay?

Benjamin Tremblay

> On Aug 2, 2026, at 9:35?AM, Rutger Vlek via Synth-diy <synth-diy at synth-diy.org> wrote:
> 
> ?
> Dear list,
> 
> I'm working on a sawtooth oscillator for a new personal synth project and have a question about temperature compensation with the 2164, as proposed in the datasheet (Figure 11): 
> https://www.soundsemiconductor.com/downloads/ssi2164datasheet.pdf
> 
> I noticed that the proposed compensation scheme takes a bipolar CV input (-5 to +5V) and generates a temperature compensated control signal for the final exponentiator (VCA2) that is also bipolar in nature, centered around the unity-gain point (0V) of the 2164. I wondered: was this chosen for practical reasons, or does the temperature compensation (or expo conversion) work more accurately around the center-point of the 2164?
> 
> The reason I ask is because I'd like to adapt this scheme to work with a unipolar CV coming from a MCU. I'm also wondering if I can drop VCA3, as high frequency compensation of non-temperature dependent effects can be entirely done inside the MCU.
> 
> Best,
> 
> Rutger
> 
> ________________________________________________________
> This is the Synth-diy mailing list
> Submit email to: Synth-diy at synth-diy.org
> View archive at: https://synth-diy.org/pipermail/synth-diy/
> Check your settings at: https://synth-diy.org/mailman/listinfo/synth-diy
> Selling or trading? Use marketplace at synth-diy.org
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From btremblay at me.com  Sun Aug  2 16:31:51 2026
From: btremblay at me.com (Benjamin Tremblay)
Date: Sun, 2 Aug 2026 10:31:51 -0400
Subject: [sdiy] 2164 temperature compensation
In-Reply-To: <8673D0F5-E3AA-4999-B63E-CCBF1A84ED03@me.com>
References: <8673D0F5-E3AA-4999-B63E-CCBF1A84ED03@me.com>
Message-ID: <A3FE0D67-CF2D-4BDD-B02F-1710F76F7136@me.com>

Since I am cheap and impatient, I have used both the AS2164 and the AS3360 controlled by an inverting op amp driven by a pwm signal. Adding just a smidge of negative voltage gives you impressive dynamic range. 

Benjamin Tremblay

> On Aug 2, 2026, at 10:24?AM, Benjamin Tremblay <btremblay at me.com> wrote:
> 
> ?Replying to this so I can monitor responses, because I am curious. I noticed that the 2164 could operate at low supply voltage. But i interpreted the specs to mean you need at least a trickle of negative voltage to get the correct range out of this device. Maybe in this circuit where it?s not being used as a vca it?s okay?
> 
> Benjamin Tremblay
> 
>>> On Aug 2, 2026, at 9:35?AM, Rutger Vlek via Synth-diy <synth-diy at synth-diy.org> wrote:
>>> 
>> ?
>> Dear list,
>> 
>> I'm working on a sawtooth oscillator for a new personal synth project and have a question about temperature compensation with the 2164, as proposed in the datasheet (Figure 11): 
>> https://www.soundsemiconductor.com/downloads/ssi2164datasheet.pdf
>> 
>> I noticed that the proposed compensation scheme takes a bipolar CV input (-5 to +5V) and generates a temperature compensated control signal for the final exponentiator (VCA2) that is also bipolar in nature, centered around the unity-gain point (0V) of the 2164. I wondered: was this chosen for practical reasons, or does the temperature compensation (or expo conversion) work more accurately around the center-point of the 2164?
>> 
>> The reason I ask is because I'd like to adapt this scheme to work with a unipolar CV coming from a MCU. I'm also wondering if I can drop VCA3, as high frequency compensation of non-temperature dependent effects can be entirely done inside the MCU.
>> 
>> Best,
>> 
>> Rutger
>> 
>> ________________________________________________________
>> This is the Synth-diy mailing list
>> Submit email to: Synth-diy at synth-diy.org
>> View archive at: https://synth-diy.org/pipermail/synth-diy/
>> Check your settings at: https://synth-diy.org/mailman/listinfo/synth-diy
>> Selling or trading? Use marketplace at synth-diy.org
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From tensiontype at hotmail.com  Tue Aug  4 22:54:13 2026
From: tensiontype at hotmail.com (Sean Ellis)
Date: Tue, 4 Aug 2026 20:54:13 +0000
Subject: [sdiy] Great DIY polysynths
In-Reply-To: <A3FE0D67-CF2D-4BDD-B02F-1710F76F7136@me.com>
References: <8673D0F5-E3AA-4999-B63E-CCBF1A84ED03@me.com>
 <A3FE0D67-CF2D-4BDD-B02F-1710F76F7136@me.com>
Message-ID: <KL1PR02MB66631D930F3C770807F26BB6B3D42@KL1PR02MB6663.apcprd02.prod.outlook.com>

I saw this on Reddit, really impressive work.

https://github.com/craigyjp/A_Bit_More

https://github.com/craigyjp/Much-More

https://old.reddit.com/r/synthdiy/comments/1vf7w07/two_synths_built_about_a_year_apart/
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From rutgervlek at gmail.com  Wed Aug  5 07:26:53 2026
From: rutgervlek at gmail.com (Rutger Vlek)
Date: Wed, 5 Aug 2026 07:26:53 +0200
Subject: [sdiy] Great DIY polysynths
In-Reply-To: <KL1PR02MB66631D930F3C770807F26BB6B3D42@KL1PR02MB6663.apcprd02.prod.outlook.com>
References: <8673D0F5-E3AA-4999-B63E-CCBF1A84ED03@me.com>
 <A3FE0D67-CF2D-4BDD-B02F-1710F76F7136@me.com>
 <KL1PR02MB66631D930F3C770807F26BB6B3D42@KL1PR02MB6663.apcprd02.prod.outlook.com>
Message-ID: <CAJ2Txe3BYcuimDto2MU9MyPhqirTO+CMJDZREnSEXe1Fss10vw@mail.gmail.com>

I don't mean to spoil the fun, but I'm wondering.... Is this real? Some of
the pictures have an AI generated vibe to them. For instance the small
printed letters on the rear of the casing, with CE marking and all. Why
would you do that for a proto?

Rutger

Op di 4 aug 2026, 23:02 schreef Sean Ellis via Synth-diy <
synth-diy at synth-diy.org>:

> I saw this on Reddit, really impressive work.
>
> https://github.com/craigyjp/A_Bit_More
>
> https://github.com/craigyjp/Much-More
>
>
> https://old.reddit.com/r/synthdiy/comments/1vf7w07/two_synths_built_about_a_year_apart/
> ________________________________________________________
> This is the Synth-diy mailing list
> Submit email to: Synth-diy at synth-diy.org
> View archive at: https://synth-diy.org/pipermail/synth-diy/
> Check your settings at: https://synth-diy.org/mailman/listinfo/synth-diy
> Selling or trading? Use marketplace at synth-diy.org
>
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From neil.johnson71 at gmail.com  Wed Aug  5 07:51:08 2026
From: neil.johnson71 at gmail.com (Neil Johnson)
Date: Wed, 5 Aug 2026 06:51:08 +0100
Subject: [sdiy] Great DIY polysynths
In-Reply-To: <CAJ2Txe3BYcuimDto2MU9MyPhqirTO+CMJDZREnSEXe1Fss10vw@mail.gmail.com>
References: <8673D0F5-E3AA-4999-B63E-CCBF1A84ED03@me.com>
 <A3FE0D67-CF2D-4BDD-B02F-1710F76F7136@me.com>
 <KL1PR02MB66631D930F3C770807F26BB6B3D42@KL1PR02MB6663.apcprd02.prod.outlook.com>
 <CAJ2Txe3BYcuimDto2MU9MyPhqirTO+CMJDZREnSEXe1Fss10vw@mail.gmail.com>
Message-ID: <CACZGMx+AnOsPNrfARkVoSSwQr8OE_rpHLTjW+fy6mnONV7RVGw@mail.gmail.com>

Hi,

Sean wote:
>> https://github.com/craigyjp/A_Bit_More

Nice!

Rutger wrote:
> I don't mean to spoil the fun, but I'm wondering.... Is this real? Some
of the pictures have an AI generated vibe to them. For instance the small
printed letters on the rear of the casing, with CE marking and all. Why
would you do that for a proto?

In the README he says:
"The case and keybed are a CME UF-70 Classic (black) and I've only kept the
main MIDI board and grounded the pots/slider inputs."

Which long-time synth-diyer Craig Barnes explains why those marks are there.

Neil
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From emily.tw.straight at gmail.com  Wed Aug  5 07:54:13 2026
From: emily.tw.straight at gmail.com (emily)
Date: Tue, 04 Aug 2026 22:54:13 -0700
Subject: [sdiy] Great DIY polysynths
In-Reply-To: <CAJ2Txe3BYcuimDto2MU9MyPhqirTO+CMJDZREnSEXe1Fss10vw@mail.gmail.com>
References: <8673D0F5-E3AA-4999-B63E-CCBF1A84ED03@me.com>
 <A3FE0D67-CF2D-4BDD-B02F-1710F76F7136@me.com>
 <KL1PR02MB66631D930F3C770807F26BB6B3D42@KL1PR02MB6663.apcprd02.prod.outlook.com>
 <CAJ2Txe3BYcuimDto2MU9MyPhqirTO+CMJDZREnSEXe1Fss10vw@mail.gmail.com>
Message-ID: <0C38CF56-3D99-462F-8709-292534AC58ED@gmail.com>

they said they use cme midi controllers as donor cases, which have the markings there. could just be that sheet is reused.

-emily

On August 4, 2026 10:26:53 PM PDT, Rutger Vlek via Synth-diy <synth-diy at synth-diy.org> wrote:
>I don't mean to spoil the fun, but I'm wondering.... Is this real? Some of
>the pictures have an AI generated vibe to them. For instance the small
>printed letters on the rear of the casing, with CE marking and all. Why
>would you do that for a proto?
>
>Rutger
>
>Op di 4 aug 2026, 23:02 schreef Sean Ellis via Synth-diy <
>synth-diy at synth-diy.org>:
>
>> I saw this on Reddit, really impressive work.
>>
>> https://github.com/craigyjp/A_Bit_More
>>
>> https://github.com/craigyjp/Much-More
>>
>>
>> https://old.reddit.com/r/synthdiy/comments/1vf7w07/two_synths_built_about_a_year_apart/
>> ________________________________________________________
>> This is the Synth-diy mailing list
>> Submit email to: Synth-diy at synth-diy.org
>> View archive at: https://synth-diy.org/pipermail/synth-diy/
>> Check your settings at: https://synth-diy.org/mailman/listinfo/synth-diy
>> Selling or trading? Use marketplace at synth-diy.org
>>
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From fanwander at mnet-online.de  Wed Aug  5 09:47:28 2026
From: fanwander at mnet-online.de (Florian Anwander)
Date: Wed, 5 Aug 2026 09:47:28 +0200
Subject: [sdiy] Great DIY polysynths
In-Reply-To: <CAJ2Txe3BYcuimDto2MU9MyPhqirTO+CMJDZREnSEXe1Fss10vw@mail.gmail.com>
References: <8673D0F5-E3AA-4999-B63E-CCBF1A84ED03@me.com>
 <A3FE0D67-CF2D-4BDD-B02F-1710F76F7136@me.com>
 <KL1PR02MB66631D930F3C770807F26BB6B3D42@KL1PR02MB6663.apcprd02.prod.outlook.com>
 <CAJ2Txe3BYcuimDto2MU9MyPhqirTO+CMJDZREnSEXe1Fss10vw@mail.gmail.com>
Message-ID: <dc4749b2-c98f-4ddc-826e-8fb27bf9e8cf@mnet-online.de>

Why should he fake, after he is providing the github repository.

Am 05.08.26 um 07:26 schrieb Rutger Vlek via Synth-diy:
> I don't mean to spoil the fun, but I'm wondering.... Is this real? 
> Some of the pictures have an AI generated vibe to them. For instance 
> the small printed letters on the rear of the casing, with CE marking 
> and all. Why would you do that for a proto?
>
> Rutger
>
> Op di 4 aug 2026, 23:02 schreef Sean Ellis via Synth-diy 
> <synth-diy at synth-diy.org>:
>
>     I saw this on Reddit, really impressive work.
>
>     https://github.com/craigyjp/A_Bit_More
>
>     https://github.com/craigyjp/Much-More
>
>     https://old.reddit.com/r/synthdiy/comments/1vf7w07/two_synths_built_about_a_year_apart/
>     ________________________________________________________
>     This is the Synth-diy mailing list
>     Submit email to: Synth-diy at synth-diy.org
>     View archive at: https://synth-diy.org/pipermail/synth-diy/
>     Check your settings at:
>     https://synth-diy.org/mailman/listinfo/synth-diy
>     Selling or trading? Use marketplace at synth-diy.org
>
>
> ________________________________________________________
> This is the Synth-diy mailing list
> Submit email to:Synth-diy at synth-diy.org
> View archive at:https://synth-diy.org/pipermail/synth-diy/
> Check your settings at:https://synth-diy.org/mailman/listinfo/synth-diy
> Selling or trading? Usemarketplace at synth-diy.org
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From modular at go2.pl  Wed Aug  5 12:35:52 2026
From: modular at go2.pl (Roman Sowa)
Date: Wed, 5 Aug 2026 12:35:52 +0200
Subject: [sdiy] Great DIY polysynths
In-Reply-To: <CAJ2Txe3BYcuimDto2MU9MyPhqirTO+CMJDZREnSEXe1Fss10vw@mail.gmail.com>
References: <8673D0F5-E3AA-4999-B63E-CCBF1A84ED03@me.com>
 <A3FE0D67-CF2D-4BDD-B02F-1710F76F7136@me.com>
 <KL1PR02MB66631D930F3C770807F26BB6B3D42@KL1PR02MB6663.apcprd02.prod.outlook.com>
 <CAJ2Txe3BYcuimDto2MU9MyPhqirTO+CMJDZREnSEXe1Fss10vw@mail.gmail.com>
Message-ID: <8d1705d6-d737-46c3-927a-811c06344236@go2.pl>

It's Craig Barnes, retired freelance contractor from UK living in 
Ukraine for some time now. He's very active on facegook, I mean the 
number one on activity in all sorts of synth DIY groups.
Famous for making everything on protoboard with wirewrap wire.
You can see there all the steps that has lead to this tage

Roman

W dniu 2026-08-05 o?07:26, Rutger Vlek via Synth-diy pisze:
> I don't mean to spoil the fun, but I'm wondering.... Is this real? Some 
> of the pictures have an AI generated vibe to them. For instance the 
> small printed letters on the rear of the casing, with CE marking and 
> all. Why would you do that for a proto?
> 
> Rutger
> 
> Op di 4 aug 2026, 23:02 schreef Sean Ellis via Synth-diy 
> <synth-diy at synth-diy.org <mailto:synth-diy at synth-diy.org>>:
> 
>     I saw this on Reddit, really impressive work.
> 
>     https://github.com/craigyjp/A_Bit_More
>     <https://github.com/craigyjp/A_Bit_More>
> 
>     https://github.com/craigyjp/Much-More
>     <https://github.com/craigyjp/Much-More>
> 
>     https://old.reddit.com/r/synthdiy/comments/1vf7w07/two_synths_built_about_a_year_apart/ <https://old.reddit.com/r/synthdiy/comments/1vf7w07/two_synths_built_about_a_year_apart/>
>     ________________________________________________________
>     This is the Synth-diy mailing list
>     Submit email to: Synth-diy at synth-diy.org
>     <mailto:Synth-diy at synth-diy.org>
>     View archive at: https://synth-diy.org/pipermail/synth-diy/
>     <https://synth-diy.org/pipermail/synth-diy/>
>     Check your settings at:
>     https://synth-diy.org/mailman/listinfo/synth-diy
>     <https://synth-diy.org/mailman/listinfo/synth-diy>
>     Selling or trading? Use marketplace at synth-diy.org
>     <mailto:marketplace at synth-diy.org>
> 
> 
> ________________________________________________________
> This is the Synth-diy mailing list
> Submit email to: Synth-diy at synth-diy.org
> View archive at: https://synth-diy.org/pipermail/synth-diy/
> Check your settings at: https://synth-diy.org/mailman/listinfo/synth-diy
> Selling or trading? Use marketplace at synth-diy.org

From tom at electricdruid.net  Wed Aug  5 12:37:09 2026
From: tom at electricdruid.net (Tom Wiltshire)
Date: Wed, 5 Aug 2026 11:37:09 +0100
Subject: [sdiy] Great DIY polysynths
In-Reply-To: <CAJ2Txe3BYcuimDto2MU9MyPhqirTO+CMJDZREnSEXe1Fss10vw@mail.gmail.com>
References: <8673D0F5-E3AA-4999-B63E-CCBF1A84ED03@me.com>
 <A3FE0D67-CF2D-4BDD-B02F-1710F76F7136@me.com>
 <KL1PR02MB66631D930F3C770807F26BB6B3D42@KL1PR02MB6663.apcprd02.prod.outlook.com>
 <CAJ2Txe3BYcuimDto2MU9MyPhqirTO+CMJDZREnSEXe1Fss10vw@mail.gmail.com>
Message-ID: <7CD9AF8D-AEA5-4F87-A894-646DC7855E7F@electricdruid.net>

Oh, don't worry, it's all real. Craig's work rate is genuinely impressive!

> On 5 Aug 2026, at 06:26, Rutger Vlek via Synth-diy <synth-diy at synth-diy.org> wrote:
> 
> I don't mean to spoil the fun, but I'm wondering.... Is this real? Some of the pictures have an AI generated vibe to them. For instance the small printed letters on the rear of the casing, with CE marking and all. Why would you do that for a proto?
> 
> Rutger 
> 
> Op di 4 aug 2026, 23:02 schreef Sean Ellis via Synth-diy <synth-diy at synth-diy.org <mailto:synth-diy at synth-diy.org>>:
> I saw this on Reddit, really impressive work. 
> 
> https://github.com/craigyjp/A_Bit_More <https://github.com/craigyjp/A_Bit_More>
> 
> https://github.com/craigyjp/Much-More <https://github.com/craigyjp/Much-More>
> 
> https://old.reddit.com/r/synthdiy/comments/1vf7w07/two_synths_built_about_a_year_apart/ <https://old.reddit.com/r/synthdiy/comments/1vf7w07/two_synths_built_about_a_year_apart/>________________________________________________________
> This is the Synth-diy mailing list
> Submit email to: Synth-diy at synth-diy.org <mailto:Synth-diy at synth-diy.org>
> View archive at: https://synth-diy.org/pipermail/synth-diy/ <https://synth-diy.org/pipermail/synth-diy/>
> Check your settings at: https://synth-diy.org/mailman/listinfo/synth-diy <https://synth-diy.org/mailman/listinfo/synth-diy>
> Selling or trading? Use marketplace at synth-diy.org <mailto:marketplace at synth-diy.org>
> ________________________________________________________
> This is the Synth-diy mailing list
> Submit email to: Synth-diy at synth-diy.org
> View archive at: https://synth-diy.org/pipermail/synth-diy/
> Check your settings at: https://synth-diy.org/mailman/listinfo/synth-diy
> Selling or trading? Use marketplace at synth-diy.org

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From btremblay at me.com  Wed Aug  5 13:53:04 2026
From: btremblay at me.com (Benjamin Tremblay)
Date: Wed, 5 Aug 2026 07:53:04 -0400
Subject: [sdiy] Great DIY polysynths
In-Reply-To: <7CD9AF8D-AEA5-4F87-A894-646DC7855E7F@electricdruid.net>
References: <7CD9AF8D-AEA5-4F87-A894-646DC7855E7F@electricdruid.net>
Message-ID: <BBDD2AF2-8CB0-4668-B3D1-AD87BFA72C35@me.com>

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From tom at electricdruid.net  Wed Aug  5 14:05:39 2026
From: tom at electricdruid.net (Tom Wiltshire)
Date: Wed, 5 Aug 2026 13:05:39 +0100
Subject: [sdiy] Great DIY polysynths
In-Reply-To: <BBDD2AF2-8CB0-4668-B3D1-AD87BFA72C35@me.com>
References: <7CD9AF8D-AEA5-4F87-A894-646DC7855E7F@electricdruid.net>
 <BBDD2AF2-8CB0-4668-B3D1-AD87BFA72C35@me.com>
Message-ID: <4B0BA4F5-F60A-4CBA-A657-18265A975790@electricdruid.net>

It's the Xpander filter, built with the AS3372E from Alfa. I know because I sent him the chips, and we were discussing it the other day.

> On 5 Aug 2026, at 12:53, Benjamin Tremblay <btremblay at me.com> wrote:
> 
> This is very cool. I wish there were more details about the filter.
> 
> 
> Benjamin Tremblay
> 
>> On Aug 5, 2026, at 6:49?AM, Tom Wiltshire <tom at electricdruid.net> wrote:
>> 
>> ?Oh, don't worry, it's all real. Craig's work rate is genuinely impressive!
>> 
>>> On 5 Aug 2026, at 06:26, Rutger Vlek via Synth-diy <synth-diy at synth-diy.org <mailto:synth-diy at synth-diy.org>> wrote:
>>> 
>>> I don't mean to spoil the fun, but I'm wondering.... Is this real? Some of the pictures have an AI generated vibe to them. For instance the small printed letters on the rear of the casing, with CE marking and all. Why would you do that for a proto?
>>> 
>>> Rutger 
>>> 
>>> Op di 4 aug 2026, 23:02 schreef Sean Ellis via Synth-diy <synth-diy at synth-diy.org <mailto:synth-diy at synth-diy.org>>:
>>> I saw this on Reddit, really impressive work. 
>>> 
>>> https://github.com/craigyjp/A_Bit_More <https://github.com/craigyjp/A_Bit_More>
>>> 
>>> https://github.com/craigyjp/Much-More <https://github.com/craigyjp/Much-More>
>>> 
>>> https://old.reddit.com/r/synthdiy/comments/1vf7w07/two_synths_built_about_a_year_apart/ <https://old.reddit.com/r/synthdiy/comments/1vf7w07/two_synths_built_about_a_year_apart/>________________________________________________________
>>> This is the Synth-diy mailing list
>>> Submit email to: Synth-diy at synth-diy.org <mailto:Synth-diy at synth-diy.org>
>>> View archive at: https://synth-diy.org/pipermail/synth-diy/ <https://synth-diy.org/pipermail/synth-diy/>
>>> Check your settings at: https://synth-diy.org/mailman/listinfo/synth-diy <https://synth-diy.org/mailman/listinfo/synth-diy>
>>> Selling or trading? Use marketplace at synth-diy.org <mailto:marketplace at synth-diy.org>
>>> ________________________________________________________
>>> This is the Synth-diy mailing list
>>> Submit email to: Synth-diy at synth-diy.org <mailto:Synth-diy at synth-diy.org>
>>> View archive at: https://synth-diy.org/pipermail/synth-diy/ <https://synth-diy.org/pipermail/synth-diy/>
>>> Check your settings at: https://synth-diy.org/mailman/listinfo/synth-diy <https://synth-diy.org/mailman/listinfo/synth-diy>
>>> Selling or trading? Use marketplace at synth-diy.org <mailto:marketplace at synth-diy.org>
>> 
>> ________________________________________________________
>> This is the Synth-diy mailing list
>> Submit email to: Synth-diy at synth-diy.org
>> View archive at: https://synth-diy.org/pipermail/synth-diy/
>> Check your settings at: https://synth-diy.org/mailman/listinfo/synth-diy
>> Selling or trading? Use marketplace at synth-diy.org

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From rutgervlek at gmail.com  Wed Aug  5 14:31:22 2026
From: rutgervlek at gmail.com (Rutger Vlek)
Date: Wed, 5 Aug 2026 14:31:22 +0200
Subject: [sdiy] Great DIY polysynths
In-Reply-To: <CAJ2Txe3BYcuimDto2MU9MyPhqirTO+CMJDZREnSEXe1Fss10vw@mail.gmail.com>
References: <8673D0F5-E3AA-4999-B63E-CCBF1A84ED03@me.com>
 <A3FE0D67-CF2D-4BDD-B02F-1710F76F7136@me.com>
 <KL1PR02MB66631D930F3C770807F26BB6B3D42@KL1PR02MB6663.apcprd02.prod.outlook.com>
 <CAJ2Txe3BYcuimDto2MU9MyPhqirTO+CMJDZREnSEXe1Fss10vw@mail.gmail.com>
Message-ID: <CAJ2Txe3p-x_8Psqw8yK=ji=OHfPSMzB9GZ0mTWChVmrjtHpnnQ@mail.gmail.com>

Holy cow, my sincere apologies for doubting if it was real. This is truly
impressive!

R.

Op wo 5 aug 2026, 07:26 schreef Rutger Vlek <rutgervlek at gmail.com>:

> I don't mean to spoil the fun, but I'm wondering.... Is this real? Some of
> the pictures have an AI generated vibe to them. For instance the small
> printed letters on the rear of the casing, with CE marking and all. Why
> would you do that for a proto?
>
> Rutger
>
> Op di 4 aug 2026, 23:02 schreef Sean Ellis via Synth-diy <
> synth-diy at synth-diy.org>:
>
>> I saw this on Reddit, really impressive work.
>>
>> https://github.com/craigyjp/A_Bit_More
>>
>> https://github.com/craigyjp/Much-More
>>
>>
>> https://old.reddit.com/r/synthdiy/comments/1vf7w07/two_synths_built_about_a_year_apart/
>> ________________________________________________________
>> This is the Synth-diy mailing list
>> Submit email to: Synth-diy at synth-diy.org
>> View archive at: https://synth-diy.org/pipermail/synth-diy/
>> Check your settings at: https://synth-diy.org/mailman/listinfo/synth-diy
>> Selling or trading? Use marketplace at synth-diy.org
>>
>
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From cheater00social at gmail.com  Thu Aug  6 01:35:42 2026
From: cheater00social at gmail.com (cheater cheater)
Date: Thu, 6 Aug 2026 01:35:42 +0200
Subject: [sdiy] Great DIY polysynths
In-Reply-To: <CAJ2Txe3p-x_8Psqw8yK=ji=OHfPSMzB9GZ0mTWChVmrjtHpnnQ@mail.gmail.com>
References: <8673D0F5-E3AA-4999-B63E-CCBF1A84ED03@me.com>
 <A3FE0D67-CF2D-4BDD-B02F-1710F76F7136@me.com>
 <KL1PR02MB66631D930F3C770807F26BB6B3D42@KL1PR02MB6663.apcprd02.prod.outlook.com>
 <CAJ2Txe3BYcuimDto2MU9MyPhqirTO+CMJDZREnSEXe1Fss10vw@mail.gmail.com>
 <CAJ2Txe3p-x_8Psqw8yK=ji=OHfPSMzB9GZ0mTWChVmrjtHpnnQ@mail.gmail.com>
Message-ID: <CAGn5V-9SfkOnaFmjM38ptnmgySoy+1v=XUP_8wLr-dx6msmH5w@mail.gmail.com>

it looks impressive until you realize the front panel is just
printouts haha the photos are a little misleading

still great work though

On Wed, Aug 5, 2026 at 2:38?PM Rutger Vlek via Synth-diy
<synth-diy at synth-diy.org> wrote:
>
> Holy cow, my sincere apologies for doubting if it was real. This is truly impressive!
>
> R.
>
> Op wo 5 aug 2026, 07:26 schreef Rutger Vlek <rutgervlek at gmail.com>:
>>
>> I don't mean to spoil the fun, but I'm wondering.... Is this real? Some of the pictures have an AI generated vibe to them. For instance the small printed letters on the rear of the casing, with CE marking and all. Why would you do that for a proto?
>>
>> Rutger
>>
>> Op di 4 aug 2026, 23:02 schreef Sean Ellis via Synth-diy <synth-diy at synth-diy.org>:
>>>
>>> I saw this on Reddit, really impressive work.
>>>
>>> https://github.com/craigyjp/A_Bit_More
>>>
>>> https://github.com/craigyjp/Much-More
>>>
>>> https://old.reddit.com/r/synthdiy/comments/1vf7w07/two_synths_built_about_a_year_apart/
>>> ________________________________________________________
>>> This is the Synth-diy mailing list
>>> Submit email to: Synth-diy at synth-diy.org
>>> View archive at: https://synth-diy.org/pipermail/synth-diy/
>>> Check your settings at: https://synth-diy.org/mailman/listinfo/synth-diy
>>> Selling or trading? Use marketplace at synth-diy.org
>
> ________________________________________________________
> This is the Synth-diy mailing list
> Submit email to: Synth-diy at synth-diy.org
> View archive at: https://synth-diy.org/pipermail/synth-diy/
> Check your settings at: https://synth-diy.org/mailman/listinfo/synth-diy
> Selling or trading? Use marketplace at synth-diy.org


From gordonjcp at gjcp.net  Thu Aug  6 09:38:00 2026
From: gordonjcp at gjcp.net (Gordonjcp)
Date: Thu, 6 Aug 2026 08:38:00 +0100
Subject: [sdiy] Great DIY polysynths
In-Reply-To: <CAGn5V-9SfkOnaFmjM38ptnmgySoy+1v=XUP_8wLr-dx6msmH5w@mail.gmail.com>
References: <8673D0F5-E3AA-4999-B63E-CCBF1A84ED03@me.com>
 <A3FE0D67-CF2D-4BDD-B02F-1710F76F7136@me.com>
 <KL1PR02MB66631D930F3C770807F26BB6B3D42@KL1PR02MB6663.apcprd02.prod.outlook.com>
 <CAJ2Txe3BYcuimDto2MU9MyPhqirTO+CMJDZREnSEXe1Fss10vw@mail.gmail.com>
 <CAJ2Txe3p-x_8Psqw8yK=ji=OHfPSMzB9GZ0mTWChVmrjtHpnnQ@mail.gmail.com>
 <CAGn5V-9SfkOnaFmjM38ptnmgySoy+1v=XUP_8wLr-dx6msmH5w@mail.gmail.com>
Message-ID: <20260806073800.GA25768@gjcp.net>

On Thu, Aug 06, 2026 at 01:35:42AM +0200, cheater cheater via Synth-diy wrote:
> it looks impressive until you realize the front panel is just
> printouts haha the photos are a little misleading

Have you ever build a fully functional polysynth?

Have you done it while being actively bombed by the Russians?

-- 
Gordonjcp


From tom at electricdruid.net  Thu Aug  6 13:53:55 2026
From: tom at electricdruid.net (Tom Wiltshire)
Date: Thu, 6 Aug 2026 12:53:55 +0100
Subject: [sdiy] Great DIY polysynths
In-Reply-To: <20260806073800.GA25768@gjcp.net>
References: <8673D0F5-E3AA-4999-B63E-CCBF1A84ED03@me.com>
 <A3FE0D67-CF2D-4BDD-B02F-1710F76F7136@me.com>
 <KL1PR02MB66631D930F3C770807F26BB6B3D42@KL1PR02MB6663.apcprd02.prod.outlook.com>
 <CAJ2Txe3BYcuimDto2MU9MyPhqirTO+CMJDZREnSEXe1Fss10vw@mail.gmail.com>
 <CAJ2Txe3p-x_8Psqw8yK=ji=OHfPSMzB9GZ0mTWChVmrjtHpnnQ@mail.gmail.com>
 <CAGn5V-9SfkOnaFmjM38ptnmgySoy+1v=XUP_8wLr-dx6msmH5w@mail.gmail.com>
 <20260806073800.GA25768@gjcp.net>
Message-ID: <B4103224-C706-44F9-B08E-57C2E92B6A70@electricdruid.net>



> On 6 Aug 2026, at 08:38, Gordonjcp <gordonjcp at gjcp.net> wrote:
> 
> On Thu, Aug 06, 2026 at 01:35:42AM +0200, cheater cheater via Synth-diy wrote:
>> it looks impressive until you realize the front panel is just
>> printouts haha the photos are a little misleading
> 
> Have you ever build a fully functional polysynth?
> 
> Have you done it while being actively bombed by the Russians?

It *is* a truly remarkable feat. Hat tip to Craig.

From chromatest at chromatest.net  Thu Aug  6 17:20:09 2026
From: chromatest at chromatest.net (Chromatest J. Pantsmaker)
Date: Thu, 06 Aug 2026 15:20:09 +0000
Subject: [sdiy] Great DIY polysynths
In-Reply-To: <CAGn5V-9SfkOnaFmjM38ptnmgySoy+1v=XUP_8wLr-dx6msmH5w@mail.gmail.com>
References: <8673D0F5-E3AA-4999-B63E-CCBF1A84ED03@me.com>
 <A3FE0D67-CF2D-4BDD-B02F-1710F76F7136@me.com>
 <KL1PR02MB66631D930F3C770807F26BB6B3D42@KL1PR02MB6663.apcprd02.prod.outlook.com>
 <CAJ2Txe3BYcuimDto2MU9MyPhqirTO+CMJDZREnSEXe1Fss10vw@mail.gmail.com>
 <CAJ2Txe3p-x_8Psqw8yK=ji=OHfPSMzB9GZ0mTWChVmrjtHpnnQ@mail.gmail.com>
 <CAGn5V-9SfkOnaFmjM38ptnmgySoy+1v=XUP_8wLr-dx6msmH5w@mail.gmail.com>
Message-ID: <LmyCVBgd0ZPrEhsrannhW-GRjzGTSspunUFJCsWLyV2XxZ2OHdXeKk89pKV8rSq98JPL04mLF90BuOBASc7O8Kb-X92s2ieaGHxh9u_3YR0=@chromatest.net>

Your complaint is that the labels are on printed material instead of silk screen? Really?

-------- Original Message --------
On Wednesday, 08/05/26 at 16:37 cheater cheater via Synth-diy <synth-diy at synth-diy.org> wrote:
it looks impressive until you realize the front panel is just
printouts haha the photos are a little misleading

still great work though



From commodorejohn at gmail.com  Thu Aug  6 18:07:16 2026
From: commodorejohn at gmail.com (John)
Date: Thu, 6 Aug 2026 09:07:16 -0700
Subject: [sdiy] Great DIY polysynths
In-Reply-To: <LmyCVBgd0ZPrEhsrannhW-GRjzGTSspunUFJCsWLyV2XxZ2OHdXeKk89pKV8rSq98JPL04mLF90BuOBASc7O8Kb-X92s2ieaGHxh9u_3YR0=@chromatest.net>
References: <8673D0F5-E3AA-4999-B63E-CCBF1A84ED03@me.com>
 <A3FE0D67-CF2D-4BDD-B02F-1710F76F7136@me.com>
 <KL1PR02MB66631D930F3C770807F26BB6B3D42@KL1PR02MB6663.apcprd02.prod.outlook.com>
 <CAJ2Txe3BYcuimDto2MU9MyPhqirTO+CMJDZREnSEXe1Fss10vw@mail.gmail.com>
 <CAJ2Txe3p-x_8Psqw8yK=ji=OHfPSMzB9GZ0mTWChVmrjtHpnnQ@mail.gmail.com>
 <CAGn5V-9SfkOnaFmjM38ptnmgySoy+1v=XUP_8wLr-dx6msmH5w@mail.gmail.com>
 <LmyCVBgd0ZPrEhsrannhW-GRjzGTSspunUFJCsWLyV2XxZ2OHdXeKk89pKV8rSq98JPL04mLF90BuOBASc7O8Kb-X92s2ieaGHxh9u_3YR0=@chromatest.net>
Message-ID: <20260806090716.00003162@gmail.com>

On Thu, 06 Aug 2026 15:20:09 +0000
"Chromatest J. Pantsmaker via Synth-diy" <synth-diy at synth-diy.org>
wrote:

> Your complaint is that the labels are on printed material instead of
> silk screen? Really?

"This DIY synthesizer being discussed on the synth-DIY mailing list
looks distinctly DIY, what's up with that!?"

From mbryant at futurehorizons.com  Thu Aug  6 18:47:00 2026
From: mbryant at futurehorizons.com (Mike Bryant)
Date: Thu, 6 Aug 2026 16:47:00 +0000
Subject: [sdiy] Great DIY polysynths
In-Reply-To: <20260806090716.00003162@gmail.com>
References: <8673D0F5-E3AA-4999-B63E-CCBF1A84ED03@me.com>
 <A3FE0D67-CF2D-4BDD-B02F-1710F76F7136@me.com>
 <KL1PR02MB66631D930F3C770807F26BB6B3D42@KL1PR02MB6663.apcprd02.prod.outlook.com>
 <CAJ2Txe3BYcuimDto2MU9MyPhqirTO+CMJDZREnSEXe1Fss10vw@mail.gmail.com>
 <CAJ2Txe3p-x_8Psqw8yK=ji=OHfPSMzB9GZ0mTWChVmrjtHpnnQ@mail.gmail.com>
 <CAGn5V-9SfkOnaFmjM38ptnmgySoy+1v=XUP_8wLr-dx6msmH5w@mail.gmail.com>
 <LmyCVBgd0ZPrEhsrannhW-GRjzGTSspunUFJCsWLyV2XxZ2OHdXeKk89pKV8rSq98JPL04mLF90BuOBASc7O8Kb-X92s2ieaGHxh9u_3YR0=@chromatest.net>
 <20260806090716.00003162@gmail.com>
Message-ID: <CWLP265MB7132FDB2B25E5522B3F20092DBD22@CWLP265MB7132.GBRP265.PROD.OUTLOOK.COM>

Actually comparing a lot of modern DIY stuff with 1960s/70s electronics, I think I know which looks a lot more 'homemade' ?
________________________________
From: Synth-diy <synth-diy-bounces at synth-diy.org> on behalf of John via Synth-diy <synth-diy at synth-diy.org>
Sent: 06 August 2026 17:07
To: SDIY List <synth-diy at synth-diy.org>
Subject: Re: [sdiy] Great DIY polysynths

On Thu, 06 Aug 2026 15:20:09 +0000
"Chromatest J. Pantsmaker via Synth-diy" <synth-diy at synth-diy.org>
wrote:

> Your complaint is that the labels are on printed material instead of
> silk screen? Really?

"This DIY synthesizer being discussed on the synth-DIY mailing list
looks distinctly DIY, what's up with that!?"
________________________________________________________
This is the Synth-diy mailing list
Submit email to: Synth-diy at synth-diy.org
View archive at: https://synth-diy.org/pipermail/synth-diy/
Check your settings at: https://synth-diy.org/mailman/listinfo/synth-diy
Selling or trading? Use marketplace at synth-diy.org
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From cheater00social at gmail.com  Thu Aug  6 20:37:46 2026
From: cheater00social at gmail.com (cheater cheater)
Date: Thu, 6 Aug 2026 20:37:46 +0200
Subject: [sdiy] Great DIY polysynths
In-Reply-To: <20260806073800.GA25768@gjcp.net>
References: <8673D0F5-E3AA-4999-B63E-CCBF1A84ED03@me.com>
 <A3FE0D67-CF2D-4BDD-B02F-1710F76F7136@me.com>
 <KL1PR02MB66631D930F3C770807F26BB6B3D42@KL1PR02MB6663.apcprd02.prod.outlook.com>
 <CAJ2Txe3BYcuimDto2MU9MyPhqirTO+CMJDZREnSEXe1Fss10vw@mail.gmail.com>
 <CAJ2Txe3p-x_8Psqw8yK=ji=OHfPSMzB9GZ0mTWChVmrjtHpnnQ@mail.gmail.com>
 <CAGn5V-9SfkOnaFmjM38ptnmgySoy+1v=XUP_8wLr-dx6msmH5w@mail.gmail.com>
 <20260806073800.GA25768@gjcp.net>
Message-ID: <CAGn5V-8+zBPC5ugBbbCOMo3-OgPFoc3Xk3_grDOrYja3wOj50w@mail.gmail.com>

On Thu, Aug 6, 2026 at 9:45?AM Gordonjcp <gordonjcp at gjcp.net> wrote:
>
> On Thu, Aug 06, 2026 at 01:35:42AM +0200, cheater cheater via Synth-diy wrote:
> > it looks impressive until you realize the front panel is just
> > printouts haha the photos are a little misleading
>
> Have you ever build a fully functional polysynth?
>
> Have you done it while being actively bombed by the Russians?

WTF is wrong with you?

I said great work. Are you drunk?


From cheater00social at gmail.com  Thu Aug  6 20:38:37 2026
From: cheater00social at gmail.com (cheater cheater)
Date: Thu, 6 Aug 2026 20:38:37 +0200
Subject: [sdiy] Great DIY polysynths
In-Reply-To: <LmyCVBgd0ZPrEhsrannhW-GRjzGTSspunUFJCsWLyV2XxZ2OHdXeKk89pKV8rSq98JPL04mLF90BuOBASc7O8Kb-X92s2ieaGHxh9u_3YR0=@chromatest.net>
References: <8673D0F5-E3AA-4999-B63E-CCBF1A84ED03@me.com>
 <A3FE0D67-CF2D-4BDD-B02F-1710F76F7136@me.com>
 <KL1PR02MB66631D930F3C770807F26BB6B3D42@KL1PR02MB6663.apcprd02.prod.outlook.com>
 <CAJ2Txe3BYcuimDto2MU9MyPhqirTO+CMJDZREnSEXe1Fss10vw@mail.gmail.com>
 <CAJ2Txe3p-x_8Psqw8yK=ji=OHfPSMzB9GZ0mTWChVmrjtHpnnQ@mail.gmail.com>
 <CAGn5V-9SfkOnaFmjM38ptnmgySoy+1v=XUP_8wLr-dx6msmH5w@mail.gmail.com>
 <LmyCVBgd0ZPrEhsrannhW-GRjzGTSspunUFJCsWLyV2XxZ2OHdXeKk89pKV8rSq98JPL04mLF90BuOBASc7O8Kb-X92s2ieaGHxh9u_3YR0=@chromatest.net>
Message-ID: <CAGn5V-8yvo9tBmVe1s-btxonbuZdMjUg+u7p9sinwNN45o7j3Q@mail.gmail.com>

On Thu, Aug 6, 2026 at 5:20?PM Chromatest J. Pantsmaker
<chromatest at chromatest.net> wrote:
>
> Your complaint is that the labels are on printed material instead of silk screen? Really?

Only on this list will people see "great work" and think it's a complaint


From pete.hartman at gmail.com  Thu Aug  6 20:50:32 2026
From: pete.hartman at gmail.com (Pete Hartman)
Date: Thu, 6 Aug 2026 13:50:32 -0500
Subject: [sdiy] Great DIY polysynths
In-Reply-To: <CAGn5V-8yvo9tBmVe1s-btxonbuZdMjUg+u7p9sinwNN45o7j3Q@mail.gmail.com>
References: <8673D0F5-E3AA-4999-B63E-CCBF1A84ED03@me.com>
 <A3FE0D67-CF2D-4BDD-B02F-1710F76F7136@me.com>
 <KL1PR02MB66631D930F3C770807F26BB6B3D42@KL1PR02MB6663.apcprd02.prod.outlook.com>
 <CAJ2Txe3BYcuimDto2MU9MyPhqirTO+CMJDZREnSEXe1Fss10vw@mail.gmail.com>
 <CAJ2Txe3p-x_8Psqw8yK=ji=OHfPSMzB9GZ0mTWChVmrjtHpnnQ@mail.gmail.com>
 <CAGn5V-9SfkOnaFmjM38ptnmgySoy+1v=XUP_8wLr-dx6msmH5w@mail.gmail.com>
 <LmyCVBgd0ZPrEhsrannhW-GRjzGTSspunUFJCsWLyV2XxZ2OHdXeKk89pKV8rSq98JPL04mLF90BuOBASc7O8Kb-X92s2ieaGHxh9u_3YR0=@chromatest.net>
 <CAGn5V-8yvo9tBmVe1s-btxonbuZdMjUg+u7p9sinwNN45o7j3Q@mail.gmail.com>
Message-ID: <CACodTR_FE8M1sR91fMaEMwLaa+bwr-U1S8iDsmYhhg+57arT0Q@mail.gmail.com>

You could have left it at "great work" instead of this noise

> it looks impressive until you realize the front panel is just printouts

On Thu, Aug 6, 2026 at 1:47?PM cheater cheater via Synth-diy
<synth-diy at synth-diy.org> wrote:
>
> On Thu, Aug 6, 2026 at 5:20?PM Chromatest J. Pantsmaker
> <chromatest at chromatest.net> wrote:
> >
> > Your complaint is that the labels are on printed material instead of silk screen? Really?
>
> Only on this list will people see "great work" and think it's a complaint
>
> ________________________________________________________
> This is the Synth-diy mailing list
> Submit email to: Synth-diy at synth-diy.org
> View archive at: https://synth-diy.org/pipermail/synth-diy/
> Check your settings at: https://synth-diy.org/mailman/listinfo/synth-diy
> Selling or trading? Use marketplace at synth-diy.org


From ben at stuyts.nl  Thu Aug  6 21:09:50 2026
From: ben at stuyts.nl (Ben Stuyts)
Date: Thu, 6 Aug 2026 21:09:50 +0200
Subject: [sdiy] Great DIY polysynths
In-Reply-To: <CAGn5V-8+zBPC5ugBbbCOMo3-OgPFoc3Xk3_grDOrYja3wOj50w@mail.gmail.com>
References: <8673D0F5-E3AA-4999-B63E-CCBF1A84ED03@me.com>
 <A3FE0D67-CF2D-4BDD-B02F-1710F76F7136@me.com>
 <KL1PR02MB66631D930F3C770807F26BB6B3D42@KL1PR02MB6663.apcprd02.prod.outlook.com>
 <CAJ2Txe3BYcuimDto2MU9MyPhqirTO+CMJDZREnSEXe1Fss10vw@mail.gmail.com>
 <CAJ2Txe3p-x_8Psqw8yK=ji=OHfPSMzB9GZ0mTWChVmrjtHpnnQ@mail.gmail.com>
 <CAGn5V-9SfkOnaFmjM38ptnmgySoy+1v=XUP_8wLr-dx6msmH5w@mail.gmail.com>
 <20260806073800.GA25768@gjcp.net>
 <CAGn5V-8+zBPC5ugBbbCOMo3-OgPFoc3Xk3_grDOrYja3wOj50w@mail.gmail.com>
Message-ID: <0339E6B6-859E-42E3-BE32-6C3C333F6086@stuyts.nl>

That is out of order. We are done with this.

Ben

> On 6 Aug 2026, at 20:37, cheater cheater via Synth-diy <synth-diy at synth-diy.org> wrote:
> 
> On Thu, Aug 6, 2026 at 9:45?AM Gordonjcp <gordonjcp at gjcp.net> wrote:
>> 
>> On Thu, Aug 06, 2026 at 01:35:42AM +0200, cheater cheater via Synth-diy wrote:
>>> it looks impressive until you realize the front panel is just
>>> printouts haha the photos are a little misleading
>> 
>> Have you ever build a fully functional polysynth?
>> 
>> Have you done it while being actively bombed by the Russians?
> 
> WTF is wrong with you?
> 
> I said great work. Are you drunk?
> 
> ________________________________________________________
> This is the Synth-diy mailing list
> Submit email to: Synth-diy at synth-diy.org
> View archive at: https://synth-diy.org/pipermail/synth-diy/
> Check your settings at: https://synth-diy.org/mailman/listinfo/synth-diy
> Selling or trading? Use marketplace at synth-diy.org
> 



From oleavitt at proton.me  Thu Aug  6 22:33:50 2026
From: oleavitt at proton.me (Oren Leavitt)
Date: Thu, 06 Aug 2026 20:33:50 +0000
Subject: [sdiy] Great DIY polysynths
In-Reply-To: <CWLP265MB7132FDB2B25E5522B3F20092DBD22@CWLP265MB7132.GBRP265.PROD.OUTLOOK.COM>
References: <8673D0F5-E3AA-4999-B63E-CCBF1A84ED03@me.com>
 <A3FE0D67-CF2D-4BDD-B02F-1710F76F7136@me.com>
 <KL1PR02MB66631D930F3C770807F26BB6B3D42@KL1PR02MB6663.apcprd02.prod.outlook.com>
 <CAJ2Txe3BYcuimDto2MU9MyPhqirTO+CMJDZREnSEXe1Fss10vw@mail.gmail.com>
 <CAJ2Txe3p-x_8Psqw8yK=ji=OHfPSMzB9GZ0mTWChVmrjtHpnnQ@mail.gmail.com>
 <CAGn5V-9SfkOnaFmjM38ptnmgySoy+1v=XUP_8wLr-dx6msmH5w@mail.gmail.com>
 <LmyCVBgd0ZPrEhsrannhW-GRjzGTSspunUFJCsWLyV2XxZ2OHdXeKk89pKV8rSq98JPL04mLF90BuOBASc7O8Kb-X92s2ieaGHxh9u_3YR0=@chromatest.net>
 <20260806090716.00003162@gmail.com>
 <CWLP265MB7132FDB2B25E5522B3F20092DBD22@CWLP265MB7132.GBRP265.PROD.OUTLOOK.COM>
Message-ID: <66073515-40e7-4660-a336-f6f171a3f1c3@proton.me>



On 8/6/26 11:47 AM, Mike Bryant wrote:
> Actually comparing a lot of modern DIY stuff with 1960s/70s electronics, 
> I think I know which looks a lot more 'homemade' ?

When I built my first modular synth, I made front panels from sheets of 
Masonite. I spray painted them white, applied labeling, dial ticks, and 
other art with a fine ink pen with the aid of rulers or stencils. 
Applied a top coat of Krylon to seal it all in. Came out pretty nice.

One of several pictures of it on my Flickr:
https://flic.kr/p/2stGyzF
> ------------------------------------------------------------------------
> *From:* Synth-diy <synth-diy-bounces at synth-diy.org> on behalf of John 
> via Synth-diy <synth-diy at synth-diy.org>
> *Sent:* 06 August 2026 17:07
> *To:* SDIY List <synth-diy at synth-diy.org>
> *Subject:* Re: [sdiy] Great DIY polysynths
> On Thu, 06 Aug 2026 15:20:09 +0000
> "Chromatest J. Pantsmaker via Synth-diy" <synth-diy at synth-diy.org>
> wrote:
> 
>> Your complaint is that the labels are on printed material instead of
>> silk screen? Really?
> 
> "This DIY synthesizer being discussed on the synth-DIY mailing list
> looks distinctly DIY, what's up with that!?"
> ________________________________________________________
> This is the Synth-diy mailing list
> Submit email to: Synth-diy at synth-diy.org
> View archive at: https://synth-diy.org/pipermail/synth-diy/ <https:// 
> synth-diy.org/pipermail/synth-diy/>
> Check your settings at: https://synth-diy.org/mailman/listinfo/synth-diy 
> <https://synth-diy.org/mailman/listinfo/synth-diy>
> Selling or trading? Use marketplace at synth-diy.org




From cheater00social at gmail.com  Thu Aug  6 23:11:11 2026
From: cheater00social at gmail.com (cheater cheater)
Date: Thu, 6 Aug 2026 23:11:11 +0200
Subject: [sdiy] Great DIY polysynths
In-Reply-To: <66073515-40e7-4660-a336-f6f171a3f1c3@proton.me>
References: <8673D0F5-E3AA-4999-B63E-CCBF1A84ED03@me.com>
 <A3FE0D67-CF2D-4BDD-B02F-1710F76F7136@me.com>
 <KL1PR02MB66631D930F3C770807F26BB6B3D42@KL1PR02MB6663.apcprd02.prod.outlook.com>
 <CAJ2Txe3BYcuimDto2MU9MyPhqirTO+CMJDZREnSEXe1Fss10vw@mail.gmail.com>
 <CAJ2Txe3p-x_8Psqw8yK=ji=OHfPSMzB9GZ0mTWChVmrjtHpnnQ@mail.gmail.com>
 <CAGn5V-9SfkOnaFmjM38ptnmgySoy+1v=XUP_8wLr-dx6msmH5w@mail.gmail.com>
 <LmyCVBgd0ZPrEhsrannhW-GRjzGTSspunUFJCsWLyV2XxZ2OHdXeKk89pKV8rSq98JPL04mLF90BuOBASc7O8Kb-X92s2ieaGHxh9u_3YR0=@chromatest.net>
 <20260806090716.00003162@gmail.com>
 <CWLP265MB7132FDB2B25E5522B3F20092DBD22@CWLP265MB7132.GBRP265.PROD.OUTLOOK.COM>
 <66073515-40e7-4660-a336-f6f171a3f1c3@proton.me>
Message-ID: <CAGn5V-8Kct-v+f=CoMFFbX66Q7rzO9jz33jYy2D3PM9FxnShcA@mail.gmail.com>

That's a vibe. I like how it feels like I'm looking at a notebook or something.

On Thu, Aug 6, 2026 at 11:02?PM Oren Leavitt via Synth-diy
<synth-diy at synth-diy.org> wrote:
>
>
>
> On 8/6/26 11:47 AM, Mike Bryant wrote:
> > Actually comparing a lot of modern DIY stuff with 1960s/70s electronics,
> > I think I know which looks a lot more 'homemade' ?
>
> When I built my first modular synth, I made front panels from sheets of
> Masonite. I spray painted them white, applied labeling, dial ticks, and
> other art with a fine ink pen with the aid of rulers or stencils.
> Applied a top coat of Krylon to seal it all in. Came out pretty nice.
>
> One of several pictures of it on my Flickr:
> https://flic.kr/p/2stGyzF
> > ------------------------------------------------------------------------
> > *From:* Synth-diy <synth-diy-bounces at synth-diy.org> on behalf of John
> > via Synth-diy <synth-diy at synth-diy.org>
> > *Sent:* 06 August 2026 17:07
> > *To:* SDIY List <synth-diy at synth-diy.org>
> > *Subject:* Re: [sdiy] Great DIY polysynths
> > On Thu, 06 Aug 2026 15:20:09 +0000
> > "Chromatest J. Pantsmaker via Synth-diy" <synth-diy at synth-diy.org>
> > wrote:
> >
> >> Your complaint is that the labels are on printed material instead of
> >> silk screen? Really?
> >
> > "This DIY synthesizer being discussed on the synth-DIY mailing list
> > looks distinctly DIY, what's up with that!?"
> > ________________________________________________________
> > This is the Synth-diy mailing list
> > Submit email to: Synth-diy at synth-diy.org
> > View archive at: https://synth-diy.org/pipermail/synth-diy/ <https://
> > synth-diy.org/pipermail/synth-diy/>
> > Check your settings at: https://synth-diy.org/mailman/listinfo/synth-diy
> > <https://synth-diy.org/mailman/listinfo/synth-diy>
> > Selling or trading? Use marketplace at synth-diy.org
>
>
>
> ________________________________________________________
> This is the Synth-diy mailing list
> Submit email to: Synth-diy at synth-diy.org
> View archive at: https://synth-diy.org/pipermail/synth-diy/
> Check your settings at: https://synth-diy.org/mailman/listinfo/synth-diy
> Selling or trading? Use marketplace at synth-diy.org


From btremblay at me.com  Thu Aug  6 23:50:22 2026
From: btremblay at me.com (Benjamin Tremblay)
Date: Thu, 6 Aug 2026 17:50:22 -0400
Subject: [sdiy] Great DIY polysynths
In-Reply-To: <CAGn5V-8Kct-v+f=CoMFFbX66Q7rzO9jz33jYy2D3PM9FxnShcA@mail.gmail.com>
References: <CAGn5V-8Kct-v+f=CoMFFbX66Q7rzO9jz33jYy2D3PM9FxnShcA@mail.gmail.com>
Message-ID: <DDECFD37-B7DF-4D9F-9D6A-AABB7DD2A811@me.com>

This thread is fascinating. The repos are inspiring. 


Benjamin Tremblay

> On Aug 6, 2026, at 5:22?PM, cheater cheater via Synth-diy <synth-diy at synth-diy.org> wrote:
> 
> ?That's a vibe. I like how it feels like I'm looking at a notebook or something.
> 
>> On Thu, Aug 6, 2026 at 11:02?PM Oren Leavitt via Synth-diy
>> <synth-diy at synth-diy.org> wrote:
>> 
>> 
>> 
>>> On 8/6/26 11:47 AM, Mike Bryant wrote:
>>> Actually comparing a lot of modern DIY stuff with 1960s/70s electronics,
>>> I think I know which looks a lot more 'homemade' ?
>> 
>> When I built my first modular synth, I made front panels from sheets of
>> Masonite. I spray painted them white, applied labeling, dial ticks, and
>> other art with a fine ink pen with the aid of rulers or stencils.
>> Applied a top coat of Krylon to seal it all in. Came out pretty nice.
>> 
>> One of several pictures of it on my Flickr:
>> https://flic.kr/p/2stGyzF
>>> ------------------------------------------------------------------------
>>> *From:* Synth-diy <synth-diy-bounces at synth-diy.org> on behalf of John
>>> via Synth-diy <synth-diy at synth-diy.org>
>>> *Sent:* 06 August 2026 17:07
>>> *To:* SDIY List <synth-diy at synth-diy.org>
>>> *Subject:* Re: [sdiy] Great DIY polysynths
>>> On Thu, 06 Aug 2026 15:20:09 +0000
>>> "Chromatest J. Pantsmaker via Synth-diy" <synth-diy at synth-diy.org>
>>> wrote:
>>> 
>>>> Your complaint is that the labels are on printed material instead of
>>>> silk screen? Really?
>>> 
>>> "This DIY synthesizer being discussed on the synth-DIY mailing list
>>> looks distinctly DIY, what's up with that!?"
>>> ________________________________________________________
>>> This is the Synth-diy mailing list
>>> Submit email to: Synth-diy at synth-diy.org
>>> View archive at: https://synth-diy.org/pipermail/synth-diy/ <https://
>>> synth-diy.org/pipermail/synth-diy/>
>>> Check your settings at: https://synth-diy.org/mailman/listinfo/synth-diy
>>> <https://synth-diy.org/mailman/listinfo/synth-diy>
>>> Selling or trading? Use marketplace at synth-diy.org
>> 
>> 
>> 
>> ________________________________________________________
>> This is the Synth-diy mailing list
>> Submit email to: Synth-diy at synth-diy.org
>> View archive at: https://synth-diy.org/pipermail/synth-diy/
>> Check your settings at: https://synth-diy.org/mailman/listinfo/synth-diy
>> Selling or trading? Use marketplace at synth-diy.org
> 
> ________________________________________________________
> This is the Synth-diy mailing list
> Submit email to: Synth-diy at synth-diy.org
> View archive at: https://synth-diy.org/pipermail/synth-diy/
> Check your settings at: https://synth-diy.org/mailman/listinfo/synth-diy
> Selling or trading? Use marketplace at synth-diy.org


From gordonjcp at gjcp.net  Fri Aug  7 00:26:48 2026
From: gordonjcp at gjcp.net (Gordonjcp)
Date: Thu, 6 Aug 2026 23:26:48 +0100
Subject: [sdiy] Great DIY polysynths
In-Reply-To: <CWLP265MB7132FDB2B25E5522B3F20092DBD22@CWLP265MB7132.GBRP265.PROD.OUTLOOK.COM>
References: <8673D0F5-E3AA-4999-B63E-CCBF1A84ED03@me.com>
 <A3FE0D67-CF2D-4BDD-B02F-1710F76F7136@me.com>
 <KL1PR02MB66631D930F3C770807F26BB6B3D42@KL1PR02MB6663.apcprd02.prod.outlook.com>
 <CAJ2Txe3BYcuimDto2MU9MyPhqirTO+CMJDZREnSEXe1Fss10vw@mail.gmail.com>
 <CAJ2Txe3p-x_8Psqw8yK=ji=OHfPSMzB9GZ0mTWChVmrjtHpnnQ@mail.gmail.com>
 <CAGn5V-9SfkOnaFmjM38ptnmgySoy+1v=XUP_8wLr-dx6msmH5w@mail.gmail.com>
 <LmyCVBgd0ZPrEhsrannhW-GRjzGTSspunUFJCsWLyV2XxZ2OHdXeKk89pKV8rSq98JPL04mLF90BuOBASc7O8Kb-X92s2ieaGHxh9u_3YR0=@chromatest.net>
 <20260806090716.00003162@gmail.com>
 <CWLP265MB7132FDB2B25E5522B3F20092DBD22@CWLP265MB7132.GBRP265.PROD.OUTLOOK.COM>
Message-ID: <20260806222648.GA30325@gjcp.net>

On Thu, Aug 06, 2026 at 04:47:00PM +0000, Mike Bryant wrote:
> Actually comparing a lot of modern DIY stuff with 1960s/70s electronics, I think I know which looks a lot more 'homemade' ?

I have repaired a bit of commercially-produced equipment - not a synth, a bit of industrial equipment - that cost as much as a new Jag.

Most of its guts are built on veroboard.

-- 
Gordonjcp


From modular at go2.pl  Fri Aug  7 13:35:36 2026
From: modular at go2.pl (Roman Sowa)
Date: Fri, 7 Aug 2026 13:35:36 +0200
Subject: [sdiy] Great DIY polysynths
In-Reply-To: <66073515-40e7-4660-a336-f6f171a3f1c3@proton.me>
References: <8673D0F5-E3AA-4999-B63E-CCBF1A84ED03@me.com>
 <A3FE0D67-CF2D-4BDD-B02F-1710F76F7136@me.com>
 <KL1PR02MB66631D930F3C770807F26BB6B3D42@KL1PR02MB6663.apcprd02.prod.outlook.com>
 <CAJ2Txe3BYcuimDto2MU9MyPhqirTO+CMJDZREnSEXe1Fss10vw@mail.gmail.com>
 <CAJ2Txe3p-x_8Psqw8yK=ji=OHfPSMzB9GZ0mTWChVmrjtHpnnQ@mail.gmail.com>
 <CAGn5V-9SfkOnaFmjM38ptnmgySoy+1v=XUP_8wLr-dx6msmH5w@mail.gmail.com>
 <LmyCVBgd0ZPrEhsrannhW-GRjzGTSspunUFJCsWLyV2XxZ2OHdXeKk89pKV8rSq98JPL04mLF90BuOBASc7O8Kb-X92s2ieaGHxh9u_3YR0=@chromatest.net>
 <20260806090716.00003162@gmail.com>
 <CWLP265MB7132FDB2B25E5522B3F20092DBD22@CWLP265MB7132.GBRP265.PROD.OUTLOOK.COM>
 <66073515-40e7-4660-a336-f6f171a3f1c3@proton.me>
Message-ID: <e998c2f7-64aa-4395-bb7c-7b4e70040db0@go2.pl>

My first DIY modules had marking printed on paper, sprayed with 
transparent acrylic paint and glued to (mostly) aluminium panels.
Still looks good today, reaching about 25 years.

http://sowa.synth.net/modular/index.html

And my polysynth made a decade earlier didn't have any markings at all! 
Just beautfull color spray painted all over the steel plate panel. It 
didn't actually need any marking, because all controll was done by 
up/down & left/right arrows with 1x40 LCD. Kind of like the synth vibe 
was in early 90's

Roman

W dniu 2026-08-06 o?22:33, Oren Leavitt via Synth-diy pisze:
> 
> 
> On 8/6/26 11:47 AM, Mike Bryant wrote:
>> Actually comparing a lot of modern DIY stuff with 1960s/70s electronics,
>> I think I know which looks a lot more 'homemade' ?
> 
> When I built my first modular synth, I made front panels from sheets of
> Masonite. I spray painted them white, applied labeling, dial ticks, and
> other art with a fine ink pen with the aid of rulers or stencils.
> Applied a top coat of Krylon to seal it all in. Came out pretty nice.
> 
> One of several pictures of it on my Flickr:
> https://flic.kr/p/2stGyzF
>> ------------------------------------------------------------------------
>> *From:* Synth-diy <synth-diy-bounces at synth-diy.org> on behalf of John
>> via Synth-diy <synth-diy at synth-diy.org>
>> *Sent:* 06 August 2026 17:07
>> *To:* SDIY List <synth-diy at synth-diy.org>
>> *Subject:* Re: [sdiy] Great DIY polysynths
>> On Thu, 06 Aug 2026 15:20:09 +0000
>> "Chromatest J. Pantsmaker via Synth-diy" <synth-diy at synth-diy.org>
>> wrote:
>>
>>> Your complaint is that the labels are on printed material instead of
>>> silk screen? Really?
>>
>> "This DIY synthesizer being discussed on the synth-DIY mailing list
>> looks distinctly DIY, what's up with that!?"
>> ________________________________________________________
>> This is the Synth-diy mailing list
>> Submit email to: Synth-diy at synth-diy.org
>> View archive at: https://synth-diy.org/pipermail/synth-diy/ <https://
>> synth-diy.org/pipermail/synth-diy/>
>> Check your settings at: https://synth-diy.org/mailman/listinfo/synth-diy
>> <https://synth-diy.org/mailman/listinfo/synth-diy>
>> Selling or trading? Use marketplace at synth-diy.org
> 
> 
> 
> ________________________________________________________
> This is the Synth-diy mailing list
> Submit email to: Synth-diy at synth-diy.org
> View archive at: https://synth-diy.org/pipermail/synth-diy/
> Check your settings at: https://synth-diy.org/mailman/listinfo/synth-diy
> Selling or trading? Use marketplace at synth-diy.org

From jacobwatters at gmail.com  Fri Aug  7 15:55:33 2026
From: jacobwatters at gmail.com (Jacob Watters)
Date: Fri, 7 Aug 2026 09:55:33 -0400
Subject: [sdiy] Great DIY polysynths
In-Reply-To: <e998c2f7-64aa-4395-bb7c-7b4e70040db0@go2.pl>
References: <8673D0F5-E3AA-4999-B63E-CCBF1A84ED03@me.com>
 <A3FE0D67-CF2D-4BDD-B02F-1710F76F7136@me.com>
 <KL1PR02MB66631D930F3C770807F26BB6B3D42@KL1PR02MB6663.apcprd02.prod.outlook.com>
 <CAJ2Txe3BYcuimDto2MU9MyPhqirTO+CMJDZREnSEXe1Fss10vw@mail.gmail.com>
 <CAJ2Txe3p-x_8Psqw8yK=ji=OHfPSMzB9GZ0mTWChVmrjtHpnnQ@mail.gmail.com>
 <CAGn5V-9SfkOnaFmjM38ptnmgySoy+1v=XUP_8wLr-dx6msmH5w@mail.gmail.com>
 <LmyCVBgd0ZPrEhsrannhW-GRjzGTSspunUFJCsWLyV2XxZ2OHdXeKk89pKV8rSq98JPL04mLF90BuOBASc7O8Kb-X92s2ieaGHxh9u_3YR0=@chromatest.net>
 <20260806090716.00003162@gmail.com>
 <CWLP265MB7132FDB2B25E5522B3F20092DBD22@CWLP265MB7132.GBRP265.PROD.OUTLOOK.COM>
 <66073515-40e7-4660-a336-f6f171a3f1c3@proton.me>
 <e998c2f7-64aa-4395-bb7c-7b4e70040db0@go2.pl>
Message-ID: <CAKcdib3XhpFZTbJ9fpgvEEAZruF-5kP6XuNro_f5f_W5fDaZRA@mail.gmail.com>

For my first synth, I literally just stuck an old EQ front panel into it
and reused all the pots in my own circuits. It's not pretty, but it got the
job done.

https://www.jacobwatters.com/images/synth/synth1.jpg


*Jacob Watters*
JacobWatters.com <http://jacobwatters.com/>


On Fri, Aug 7, 2026 at 7:37?AM Roman Sowa via Synth-diy <
synth-diy at synth-diy.org> wrote:

> My first DIY modules had marking printed on paper, sprayed with
> transparent acrylic paint and glued to (mostly) aluminium panels.
> Still looks good today, reaching about 25 years.
>
> http://sowa.synth.net/modular/index.html
>
> And my polysynth made a decade earlier didn't have any markings at all!
> Just beautfull color spray painted all over the steel plate panel. It
> didn't actually need any marking, because all controll was done by
> up/down & left/right arrows with 1x40 LCD. Kind of like the synth vibe
> was in early 90's
>
> Roman
>
> W dniu 2026-08-06 o 22:33, Oren Leavitt via Synth-diy pisze:
> >
> >
> > On 8/6/26 11:47 AM, Mike Bryant wrote:
> >> Actually comparing a lot of modern DIY stuff with 1960s/70s electronics,
> >> I think I know which looks a lot more 'homemade' ?
> >
> > When I built my first modular synth, I made front panels from sheets of
> > Masonite. I spray painted them white, applied labeling, dial ticks, and
> > other art with a fine ink pen with the aid of rulers or stencils.
> > Applied a top coat of Krylon to seal it all in. Came out pretty nice.
> >
> > One of several pictures of it on my Flickr:
> > https://flic.kr/p/2stGyzF
> >> ------------------------------------------------------------------------
> >> *From:* Synth-diy <synth-diy-bounces at synth-diy.org> on behalf of John
> >> via Synth-diy <synth-diy at synth-diy.org>
> >> *Sent:* 06 August 2026 17:07
> >> *To:* SDIY List <synth-diy at synth-diy.org>
> >> *Subject:* Re: [sdiy] Great DIY polysynths
> >> On Thu, 06 Aug 2026 15:20:09 +0000
> >> "Chromatest J. Pantsmaker via Synth-diy" <synth-diy at synth-diy.org>
> >> wrote:
> >>
> >>> Your complaint is that the labels are on printed material instead of
> >>> silk screen? Really?
> >>
> >> "This DIY synthesizer being discussed on the synth-DIY mailing list
> >> looks distinctly DIY, what's up with that!?"
> >> ________________________________________________________
> >> This is the Synth-diy mailing list
> >> Submit email to: Synth-diy at synth-diy.org
> >> View archive at: https://synth-diy.org/pipermail/synth-diy/ <https://
> >> synth-diy.org/pipermail/synth-diy/>
> >> Check your settings at:
> https://synth-diy.org/mailman/listinfo/synth-diy
> >> <https://synth-diy.org/mailman/listinfo/synth-diy>
> >> Selling or trading? Use marketplace at synth-diy.org
> >
> >
> >
> > ________________________________________________________
> > This is the Synth-diy mailing list
> > Submit email to: Synth-diy at synth-diy.org
> > View archive at: https://synth-diy.org/pipermail/synth-diy/
> > Check your settings at: https://synth-diy.org/mailman/listinfo/synth-diy
> > Selling or trading? Use marketplace at synth-diy.org
> ________________________________________________________
> This is the Synth-diy mailing list
> Submit email to: Synth-diy at synth-diy.org
> View archive at: https://synth-diy.org/pipermail/synth-diy/
> Check your settings at: https://synth-diy.org/mailman/listinfo/synth-diy
> Selling or trading? Use marketplace at synth-diy.org
>
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From btremblay at me.com  Fri Aug  7 16:17:31 2026
From: btremblay at me.com (Benjamin Tremblay)
Date: Fri, 7 Aug 2026 10:17:31 -0400
Subject: [sdiy] Great DIY polysynths
In-Reply-To: <CAKcdib3XhpFZTbJ9fpgvEEAZruF-5kP6XuNro_f5f_W5fDaZRA@mail.gmail.com>
References: <CAKcdib3XhpFZTbJ9fpgvEEAZruF-5kP6XuNro_f5f_W5fDaZRA@mail.gmail.com>
Message-ID: <E248124A-B8C6-4AA2-9186-D9091073FA84@me.com>

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From luis.marka at gmail.com  Fri Aug  7 16:19:45 2026
From: luis.marka at gmail.com (Luis Marka)
Date: Fri, 7 Aug 2026 11:19:45 -0300
Subject: [sdiy] Great DIY polysynths
In-Reply-To: <CAKcdib3XhpFZTbJ9fpgvEEAZruF-5kP6XuNro_f5f_W5fDaZRA@mail.gmail.com>
References: <8673D0F5-E3AA-4999-B63E-CCBF1A84ED03@me.com>
 <A3FE0D67-CF2D-4BDD-B02F-1710F76F7136@me.com>
 <KL1PR02MB66631D930F3C770807F26BB6B3D42@KL1PR02MB6663.apcprd02.prod.outlook.com>
 <CAJ2Txe3BYcuimDto2MU9MyPhqirTO+CMJDZREnSEXe1Fss10vw@mail.gmail.com>
 <CAJ2Txe3p-x_8Psqw8yK=ji=OHfPSMzB9GZ0mTWChVmrjtHpnnQ@mail.gmail.com>
 <CAGn5V-9SfkOnaFmjM38ptnmgySoy+1v=XUP_8wLr-dx6msmH5w@mail.gmail.com>
 <LmyCVBgd0ZPrEhsrannhW-GRjzGTSspunUFJCsWLyV2XxZ2OHdXeKk89pKV8rSq98JPL04mLF90BuOBASc7O8Kb-X92s2ieaGHxh9u_3YR0=@chromatest.net>
 <20260806090716.00003162@gmail.com>
 <CWLP265MB7132FDB2B25E5522B3F20092DBD22@CWLP265MB7132.GBRP265.PROD.OUTLOOK.COM>
 <66073515-40e7-4660-a336-f6f171a3f1c3@proton.me>
 <e998c2f7-64aa-4395-bb7c-7b4e70040db0@go2.pl>
 <CAKcdib3XhpFZTbJ9fpgvEEAZruF-5kP6XuNro_f5f_W5fDaZRA@mail.gmail.com>
Message-ID: <b0b08893-3d1c-4a5e-952c-38aeb3d717c5@gmail.com>

As you can imagine, building my first polysynth was a LOT of work (hope 
the link works):

https://i.postimg.cc/gkfxWVqR/photo1682192474.jpg

Cheers!


On 2026-08-07 10:55 a.m., Jacob Watters via Synth-diy wrote:
> For my first synth, I literally just stuck an?old EQ front panel into 
> it and reused all the pots in my own circuits. It's not pretty, but it 
> got the job done.
>
> https://www.jacobwatters.com/images/synth/synth1.jpg
>
>
> *Jacob Watters*
> JacobWatters.com <http://jacobwatters.com/>
>
>
> On Fri, Aug 7, 2026 at 7:37?AM Roman Sowa via Synth-diy 
> <synth-diy at synth-diy.org> wrote:
>
>     My first DIY modules had marking printed on paper, sprayed with
>     transparent acrylic paint and glued to (mostly) aluminium panels.
>     Still looks good today, reaching about 25 years.
>
>     http://sowa.synth.net/modular/index.html
>
>     And my polysynth made a decade earlier didn't have any markings at
>     all!
>     Just beautfull color spray painted all over the steel plate panel. It
>     didn't actually need any marking, because all controll was done by
>     up/down & left/right arrows with 1x40 LCD. Kind of like the synth
>     vibe
>     was in early 90's
>
>     Roman
>
>     W dniu 2026-08-06 o?22:33, Oren Leavitt via Synth-diy pisze:
>     >
>     >
>     > On 8/6/26 11:47 AM, Mike Bryant wrote:
>     >> Actually comparing a lot of modern DIY stuff with 1960s/70s
>     electronics,
>     >> I think I know which looks a lot more 'homemade' ?
>     >
>     > When I built my first modular synth, I made front panels from
>     sheets of
>     > Masonite. I spray painted them white, applied labeling, dial
>     ticks, and
>     > other art with a fine ink pen with the aid of rulers or stencils.
>     > Applied a top coat of Krylon to seal it all in. Came out pretty
>     nice.
>     >
>     > One of several pictures of it on my Flickr:
>     > https://flic.kr/p/2stGyzF
>     >>
>     ------------------------------------------------------------------------
>     >> *From:* Synth-diy <synth-diy-bounces at synth-diy.org> on behalf
>     of John
>     >> via Synth-diy <synth-diy at synth-diy.org>
>     >> *Sent:* 06 August 2026 17:07
>     >> *To:* SDIY List <synth-diy at synth-diy.org>
>     >> *Subject:* Re: [sdiy] Great DIY polysynths
>     >> On Thu, 06 Aug 2026 15:20:09 +0000
>     >> "Chromatest J. Pantsmaker via Synth-diy" <synth-diy at synth-diy.org>
>     >> wrote:
>     >>
>     >>> Your complaint is that the labels are on printed material
>     instead of
>     >>> silk screen? Really?
>     >>
>     >> "This DIY synthesizer being discussed on the synth-DIY mailing list
>     >> looks distinctly DIY, what's up with that!?"
>     >> ________________________________________________________
>     >> This is the Synth-diy mailing list
>     >> Submit email to: Synth-diy at synth-diy.org
>     >> View archive at: https://synth-diy.org/pipermail/synth-diy/
>     <https://
>     >> synth-diy.org/pipermail/synth-diy/
>     <http://synth-diy.org/pipermail/synth-diy/>>
>     >> Check your settings at:
>     https://synth-diy.org/mailman/listinfo/synth-diy
>     >> <https://synth-diy.org/mailman/listinfo/synth-diy>
>     >> Selling or trading? Use marketplace at synth-diy.org
>     >
>     >
>     >
>     > ________________________________________________________
>     > This is the Synth-diy mailing list
>     > Submit email to: Synth-diy at synth-diy.org
>     > View archive at: https://synth-diy.org/pipermail/synth-diy/
>     > Check your settings at:
>     https://synth-diy.org/mailman/listinfo/synth-diy
>     > Selling or trading? Use marketplace at synth-diy.org
>     ________________________________________________________
>     This is the Synth-diy mailing list
>     Submit email to: Synth-diy at synth-diy.org
>     View archive at: https://synth-diy.org/pipermail/synth-diy/
>     Check your settings at:
>     https://synth-diy.org/mailman/listinfo/synth-diy
>     Selling or trading? Use marketplace at synth-diy.org
>
>
> ________________________________________________________
> This is the Synth-diy mailing list
> Submit email to:Synth-diy at synth-diy.org
> View archive at:https://synth-diy.org/pipermail/synth-diy/
> Check your settings at:https://synth-diy.org/mailman/listinfo/synth-diy
> Selling or trading? Usemarketplace at synth-diy.org
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From modular at go2.pl  Fri Aug  7 18:42:58 2026
From: modular at go2.pl (Roman Sowa)
Date: Fri, 7 Aug 2026 18:42:58 +0200
Subject: [sdiy] Great DIY polysynths
In-Reply-To: <E248124A-B8C6-4AA2-9186-D9091073FA84@me.com>
References: <CAKcdib3XhpFZTbJ9fpgvEEAZruF-5kP6XuNro_f5f_W5fDaZRA@mail.gmail.com>
 <E248124A-B8C6-4AA2-9186-D9091073FA84@me.com>
Message-ID: <8d39b147-20de-48b3-8663-138027f53f1f@go2.pl>

Too bad I can't show you my first synth. Or 2nd either.
I destroyed them, not thinking it's something an older me would love to 
have. :(

Roman

W dniu 2026-08-07 o?16:17, Benjamin Tremblay pisze:
> Ummm I?m not going to describe my first synths. I was 16.
> 
> Benjamin Tremblay
> 
>> On Aug 7, 2026, at 10:06?AM, Jacob Watters via Synth-diy 
>> <synth-diy at synth-diy.org> wrote:
>>
>> ?
>> For my first synth, I literally just stuck an?old EQ front panel into 
>> it and reused all the pots in my own circuits. It's not pretty, but it 
>> got the job done.
>>
>> https://www.jacobwatters.com/images/synth/synth1.jpg 
>> <https://www.jacobwatters.com/images/synth/synth1.jpg>
>>
>>
>> *Jacob Watters*
>> JacobWatters.com <http://jacobwatters.com/>
>>
>>
>> On Fri, Aug 7, 2026 at 7:37?AM Roman Sowa via Synth-diy 
>> <synth-diy at synth-diy.org <mailto:synth-diy at synth-diy.org>> wrote:
>>
>>     My first DIY modules had marking printed on paper, sprayed with
>>     transparent acrylic paint and glued to (mostly) aluminium panels.
>>     Still looks good today, reaching about 25 years.
>>
>>     http://sowa.synth.net/modular/index.html
>>     <http://sowa.synth.net/modular/index.html>
>>
>>     And my polysynth made a decade earlier didn't have any markings at
>>     all!
>>     Just beautfull color spray painted all over the steel plate panel. It
>>     didn't actually need any marking, because all controll was done by
>>     up/down & left/right arrows with 1x40 LCD. Kind of like the synth
>>     vibe
>>     was in early 90's
>>
>>     Roman
>>
>>     W dniu 2026-08-06 o?22:33, Oren Leavitt via Synth-diy pisze:
>>     >
>>     >
>>     > On 8/6/26 11:47 AM, Mike Bryant wrote:
>>     >> Actually comparing a lot of modern DIY stuff with 1960s/70s
>>     electronics,
>>     >> I think I know which looks a lot more 'homemade' ?
>>     >
>>     > When I built my first modular synth, I made front panels from
>>     sheets of
>>     > Masonite. I spray painted them white, applied labeling, dial
>>     ticks, and
>>     > other art with a fine ink pen with the aid of rulers or stencils.
>>     > Applied a top coat of Krylon to seal it all in. Came out pretty
>>     nice.
>>     >
>>     > One of several pictures of it on my Flickr:
>>     > https://flic.kr/p/2stGyzF <https://flic.kr/p/2stGyzF>
>>     >>
>>     ------------------------------------------------------------------------
>>     >> *From:* Synth-diy <synth-diy-bounces at synth-diy.org
>>     <mailto:synth-diy-bounces at synth-diy.org>> on behalf of John
>>     >> via Synth-diy <synth-diy at synth-diy.org
>>     <mailto:synth-diy at synth-diy.org>>
>>     >> *Sent:* 06 August 2026 17:07
>>     >> *To:* SDIY List <synth-diy at synth-diy.org
>>     <mailto:synth-diy at synth-diy.org>>
>>     >> *Subject:* Re: [sdiy] Great DIY polysynths
>>     >> On Thu, 06 Aug 2026 15:20:09 +0000
>>     >> "Chromatest J. Pantsmaker via Synth-diy"
>>     <synth-diy at synth-diy.org <mailto:synth-diy at synth-diy.org>>
>>     >> wrote:
>>     >>
>>     >>> Your complaint is that the labels are on printed material
>>     instead of
>>     >>> silk screen? Really?
>>     >>
>>     >> "This DIY synthesizer being discussed on the synth-DIY mailing list
>>     >> looks distinctly DIY, what's up with that!?"
>>     >> ________________________________________________________
>>     >> This is the Synth-diy mailing list
>>     >> Submit email to: Synth-diy at synth-diy.org
>>     <mailto:Synth-diy at synth-diy.org>
>>     >> View archive at: https://synth-diy.org/pipermail/synth-diy/
>>     <https://synth-diy.org/pipermail/synth-diy/> <https://
>>     >> synth-diy.org/pipermail/synth-diy/
>>     <http://synth-diy.org/pipermail/synth-diy/>>
>>     >> Check your settings at:
>>     https://synth-diy.org/mailman/listinfo/synth-diy
>>     <https://synth-diy.org/mailman/listinfo/synth-diy>
>>     >> <https://synth-diy.org/mailman/listinfo/synth-diy
>>     <https://synth-diy.org/mailman/listinfo/synth-diy>>
>>     >> Selling or trading? Use marketplace at synth-diy.org
>>     <mailto:marketplace at synth-diy.org>
>>     >
>>     >
>>     >
>>     > ________________________________________________________
>>     > This is the Synth-diy mailing list
>>     > Submit email to: Synth-diy at synth-diy.org
>>     <mailto:Synth-diy at synth-diy.org>
>>     > View archive at: https://synth-diy.org/pipermail/synth-diy/
>>     <https://synth-diy.org/pipermail/synth-diy/>
>>     > Check your settings at:
>>     https://synth-diy.org/mailman/listinfo/synth-diy
>>     <https://synth-diy.org/mailman/listinfo/synth-diy>
>>     > Selling or trading? Use marketplace at synth-diy.org
>>     <mailto:marketplace at synth-diy.org>
>>     ________________________________________________________
>>     This is the Synth-diy mailing list
>>     Submit email to: Synth-diy at synth-diy.org
>>     <mailto:Synth-diy at synth-diy.org>
>>     View archive at: https://synth-diy.org/pipermail/synth-diy/
>>     <https://synth-diy.org/pipermail/synth-diy/>
>>     Check your settings at:
>>     https://synth-diy.org/mailman/listinfo/synth-diy
>>     <https://synth-diy.org/mailman/listinfo/synth-diy>
>>     Selling or trading? Use marketplace at synth-diy.org
>>     <mailto:marketplace at synth-diy.org>
>>
>> ________________________________________________________
>> This is the Synth-diy mailing list
>> Submit email to: Synth-diy at synth-diy.org
>> View archive at: https://synth-diy.org/pipermail/synth-diy/
>> Check your settings at: https://synth-diy.org/mailman/listinfo/synth-diy
>> Selling or trading? Use marketplace at synth-diy.org

From declareupdate at gmail.com  Fri Aug  7 20:25:12 2026
From: declareupdate at gmail.com (Chris McDowell)
Date: Fri, 7 Aug 2026 13:25:12 -0500
Subject: [sdiy] Great DIY polysynths
In-Reply-To: <8d39b147-20de-48b3-8663-138027f53f1f@go2.pl>
References: <8d39b147-20de-48b3-8663-138027f53f1f@go2.pl>
Message-ID: <C3749EFA-3F83-4866-886E-CF0DFF578940@gmail.com>

Same here Roman, I took 'em all apart for no good reason. 

First and second polysynths though: 
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Cheers,
Chris 

> On Aug 7, 2026, at 11:50?AM, Roman Sowa via Synth-diy <synth-diy at synth-diy.org> wrote:
> ?Too bad I can't show you my first synth. Or 2nd either.
> I destroyed them, not thinking it's something an older me would love to have. :(
> 
> Roman
> 
> W dniu 2026-08-07 o 16:17, Benjamin Tremblay pisze:
>> Ummm I?m not going to describe my first synths. I was 16.
>> Benjamin Tremblay
>>>> On Aug 7, 2026, at 10:06?AM, Jacob Watters via Synth-diy <synth-diy at synth-diy.org> wrote:
>>> ?
>>> For my first synth, I literally just stuck an old EQ front panel into it and reused all the pots in my own circuits. It's not pretty, but it got the job done.
>>> https://www.jacobwatters.com/images/synth/synth1.jpg <https://www.jacobwatters.com/images/synth/synth1.jpg>
>>> *Jacob Watters*
>>> JacobWatters.com <http://jacobwatters.com/>
>>>> On Fri, Aug 7, 2026 at 7:37?AM Roman Sowa via Synth-diy <synth-diy at synth-diy.org <mailto:synth-diy at synth-diy.org>> wrote:
>>>    My first DIY modules had marking printed on paper, sprayed with
>>>    transparent acrylic paint and glued to (mostly) aluminium panels.
>>>    Still looks good today, reaching about 25 years.
>>>    http://sowa.synth.net/modular/index.html
>>>    <http://sowa.synth.net/modular/index.html>
>>>    And my polysynth made a decade earlier didn't have any markings at
>>>    all!
>>>    Just beautfull color spray painted all over the steel plate panel. It
>>>    didn't actually need any marking, because all controll was done by
>>>    up/down & left/right arrows with 1x40 LCD. Kind of like the synth
>>>    vibe
>>>    was in early 90's
>>>    Roman
>>>    W dniu 2026-08-06 o 22:33, Oren Leavitt via Synth-diy pisze:
>>>    >
>>>    >
>>>    > On 8/6/26 11:47 AM, Mike Bryant wrote:
>>>    >> Actually comparing a lot of modern DIY stuff with 1960s/70s
>>>    electronics,
>>>    >> I think I know which looks a lot more 'homemade' ?
>>>    >
>>>    > When I built my first modular synth, I made front panels from
>>>    sheets of
>>>    > Masonite. I spray painted them white, applied labeling, dial
>>>    ticks, and
>>>    > other art with a fine ink pen with the aid of rulers or stencils.
>>>    > Applied a top coat of Krylon to seal it all in. Came out pretty
>>>    nice.
>>>    >
>>>    > One of several pictures of it on my Flickr:
>>>    > https://flic.kr/p/2stGyzF <https://flic.kr/p/2stGyzF>
>>>    >>
>>>    ------------------------------------------------------------------------
>>>    >> *From:* Synth-diy <synth-diy-bounces at synth-diy.org
>>>    <mailto:synth-diy-bounces at synth-diy.org>> on behalf of John
>>>    >> via Synth-diy <synth-diy at synth-diy.org
>>>    <mailto:synth-diy at synth-diy.org>>
>>>    >> *Sent:* 06 August 2026 17:07
>>>    >> *To:* SDIY List <synth-diy at synth-diy.org
>>>    <mailto:synth-diy at synth-diy.org>>
>>>    >> *Subject:* Re: [sdiy] Great DIY polysynths
>>>    >> On Thu, 06 Aug 2026 15:20:09 +0000
>>>    >> "Chromatest J. Pantsmaker via Synth-diy"
>>>    <synth-diy at synth-diy.org <mailto:synth-diy at synth-diy.org>>
>>>    >> wrote:
>>>    >>
>>>    >>> Your complaint is that the labels are on printed material
>>>    instead of
>>>    >>> silk screen? Really?
>>>    >>
>>>    >> "This DIY synthesizer being discussed on the synth-DIY mailing list
>>>    >> looks distinctly DIY, what's up with that!?"
>>>    >> ________________________________________________________
>>>    >> This is the Synth-diy mailing list
>>>    >> Submit email to: Synth-diy at synth-diy.org
>>>    <mailto:Synth-diy at synth-diy.org>
>>>    >> View archive at: https://synth-diy.org/pipermail/synth-diy/
>>>    <https://synth-diy.org/pipermail/synth-diy/> <https://
>>>    >> synth-diy.org/pipermail/synth-diy/
>>>    <http://synth-diy.org/pipermail/synth-diy/>>
>>>    >> Check your settings at:
>>>    https://synth-diy.org/mailman/listinfo/synth-diy
>>>    <https://synth-diy.org/mailman/listinfo/synth-diy>
>>>    >> <https://synth-diy.org/mailman/listinfo/synth-diy
>>>    <https://synth-diy.org/mailman/listinfo/synth-diy>>
>>>    >> Selling or trading? Use marketplace at synth-diy.org
>>>    <mailto:marketplace at synth-diy.org>
>>>    >
>>>    >
>>>    >
>>>    > ________________________________________________________
>>>    > This is the Synth-diy mailing list
>>>    > Submit email to: Synth-diy at synth-diy.org
>>>    <mailto:Synth-diy at synth-diy.org>
>>>    > View archive at: https://synth-diy.org/pipermail/synth-diy/
>>>    <https://synth-diy.org/pipermail/synth-diy/>
>>>    > Check your settings at:
>>>    https://synth-diy.org/mailman/listinfo/synth-diy
>>>    <https://synth-diy.org/mailman/listinfo/synth-diy>
>>>    > Selling or trading? Use marketplace at synth-diy.org
>>>    <mailto:marketplace at synth-diy.org>
>>>    ________________________________________________________
>>>    This is the Synth-diy mailing list
>>>    Submit email to: Synth-diy at synth-diy.org
>>>    <mailto:Synth-diy at synth-diy.org>
>>>    View archive at: https://synth-diy.org/pipermail/synth-diy/
>>>    <https://synth-diy.org/pipermail/synth-diy/>
>>>    Check your settings at:
>>>    https://synth-diy.org/mailman/listinfo/synth-diy
>>>    <https://synth-diy.org/mailman/listinfo/synth-diy>
>>>    Selling or trading? Use marketplace at synth-diy.org
>>>    <mailto:marketplace at synth-diy.org>
>>> ________________________________________________________
>>> This is the Synth-diy mailing list
>>> Submit email to: Synth-diy at synth-diy.org
>>> View archive at: https://synth-diy.org/pipermail/synth-diy/
>>> Check your settings at: https://synth-diy.org/mailman/listinfo/synth-diy
>>> Selling or trading? Use marketplace at synth-diy.org
> ________________________________________________________
> This is the Synth-diy mailing list
> Submit email to: Synth-diy at synth-diy.org
> View archive at: https://synth-diy.org/pipermail/synth-diy/
> Check your settings at: https://synth-diy.org/mailman/listinfo/synth-diy
> Selling or trading? Use marketplace at synth-diy.org

From cheater00social at gmail.com  Sat Aug  8 00:51:03 2026
From: cheater00social at gmail.com (cheater cheater)
Date: Sat, 8 Aug 2026 00:51:03 +0200
Subject: [sdiy] Great DIY polysynths
In-Reply-To: <C3749EFA-3F83-4866-886E-CF0DFF578940@gmail.com>
References: <8d39b147-20de-48b3-8663-138027f53f1f@go2.pl>
 <C3749EFA-3F83-4866-886E-CF0DFF578940@gmail.com>
Message-ID: <CAGn5V--0b-ybviuzZ7B0TLjdZ-fBeao9f=5_GWD=HBMB7JTxhg@mail.gmail.com>

I love the desktop module, the UI is kind of artistic.

On Fri, Aug 7, 2026 at 8:34?PM Chris McDowell via Synth-diy
<synth-diy at synth-diy.org> wrote:
>
> Same here Roman, I took 'em all apart for no good reason.
>
> First and second polysynths though:
>
>
> Cheers,
> Chris
>
> > On Aug 7, 2026, at 11:50?AM, Roman Sowa via Synth-diy <synth-diy at synth-diy.org> wrote:
> > ?Too bad I can't show you my first synth. Or 2nd either.
> > I destroyed them, not thinking it's something an older me would love to have. :(
> >
> > Roman
> >
> > W dniu 2026-08-07 o 16:17, Benjamin Tremblay pisze:
> >> Ummm I?m not going to describe my first synths. I was 16.
> >> Benjamin Tremblay
> >>>> On Aug 7, 2026, at 10:06?AM, Jacob Watters via Synth-diy <synth-diy at synth-diy.org> wrote:
> >>> ?
> >>> For my first synth, I literally just stuck an old EQ front panel into it and reused all the pots in my own circuits. It's not pretty, but it got the job done.
> >>> https://www.jacobwatters.com/images/synth/synth1.jpg <https://www.jacobwatters.com/images/synth/synth1.jpg>
> >>> *Jacob Watters*
> >>> JacobWatters.com <http://jacobwatters.com/>
> >>>> On Fri, Aug 7, 2026 at 7:37?AM Roman Sowa via Synth-diy <synth-diy at synth-diy.org <mailto:synth-diy at synth-diy.org>> wrote:
> >>>    My first DIY modules had marking printed on paper, sprayed with
> >>>    transparent acrylic paint and glued to (mostly) aluminium panels.
> >>>    Still looks good today, reaching about 25 years.
> >>>    http://sowa.synth.net/modular/index.html
> >>>    <http://sowa.synth.net/modular/index.html>
> >>>    And my polysynth made a decade earlier didn't have any markings at
> >>>    all!
> >>>    Just beautfull color spray painted all over the steel plate panel. It
> >>>    didn't actually need any marking, because all controll was done by
> >>>    up/down & left/right arrows with 1x40 LCD. Kind of like the synth
> >>>    vibe
> >>>    was in early 90's
> >>>    Roman
> >>>    W dniu 2026-08-06 o 22:33, Oren Leavitt via Synth-diy pisze:
> >>>    >
> >>>    >
> >>>    > On 8/6/26 11:47 AM, Mike Bryant wrote:
> >>>    >> Actually comparing a lot of modern DIY stuff with 1960s/70s
> >>>    electronics,
> >>>    >> I think I know which looks a lot more 'homemade' ?
> >>>    >
> >>>    > When I built my first modular synth, I made front panels from
> >>>    sheets of
> >>>    > Masonite. I spray painted them white, applied labeling, dial
> >>>    ticks, and
> >>>    > other art with a fine ink pen with the aid of rulers or stencils.
> >>>    > Applied a top coat of Krylon to seal it all in. Came out pretty
> >>>    nice.
> >>>    >
> >>>    > One of several pictures of it on my Flickr:
> >>>    > https://flic.kr/p/2stGyzF <https://flic.kr/p/2stGyzF>
> >>>    >>
> >>>    ------------------------------------------------------------------------
> >>>    >> *From:* Synth-diy <synth-diy-bounces at synth-diy.org
> >>>    <mailto:synth-diy-bounces at synth-diy.org>> on behalf of John
> >>>    >> via Synth-diy <synth-diy at synth-diy.org
> >>>    <mailto:synth-diy at synth-diy.org>>
> >>>    >> *Sent:* 06 August 2026 17:07
> >>>    >> *To:* SDIY List <synth-diy at synth-diy.org
> >>>    <mailto:synth-diy at synth-diy.org>>
> >>>    >> *Subject:* Re: [sdiy] Great DIY polysynths
> >>>    >> On Thu, 06 Aug 2026 15:20:09 +0000
> >>>    >> "Chromatest J. Pantsmaker via Synth-diy"
> >>>    <synth-diy at synth-diy.org <mailto:synth-diy at synth-diy.org>>
> >>>    >> wrote:
> >>>    >>
> >>>    >>> Your complaint is that the labels are on printed material
> >>>    instead of
> >>>    >>> silk screen? Really?
> >>>    >>
> >>>    >> "This DIY synthesizer being discussed on the synth-DIY mailing list
> >>>    >> looks distinctly DIY, what's up with that!?"
> >>>    >> ________________________________________________________
> >>>    >> This is the Synth-diy mailing list
> >>>    >> Submit email to: Synth-diy at synth-diy.org
> >>>    <mailto:Synth-diy at synth-diy.org>
> >>>    >> View archive at: https://synth-diy.org/pipermail/synth-diy/
> >>>    <https://synth-diy.org/pipermail/synth-diy/> <https://
> >>>    >> synth-diy.org/pipermail/synth-diy/
> >>>    <http://synth-diy.org/pipermail/synth-diy/>>
> >>>    >> Check your settings at:
> >>>    https://synth-diy.org/mailman/listinfo/synth-diy
> >>>    <https://synth-diy.org/mailman/listinfo/synth-diy>
> >>>    >> <https://synth-diy.org/mailman/listinfo/synth-diy
> >>>    <https://synth-diy.org/mailman/listinfo/synth-diy>>
> >>>    >> Selling or trading? Use marketplace at synth-diy.org
> >>>    <mailto:marketplace at synth-diy.org>
> >>>    >
> >>>    >
> >>>    >
> >>>    > ________________________________________________________
> >>>    > This is the Synth-diy mailing list
> >>>    > Submit email to: Synth-diy at synth-diy.org
> >>>    <mailto:Synth-diy at synth-diy.org>
> >>>    > View archive at: https://synth-diy.org/pipermail/synth-diy/
> >>>    <https://synth-diy.org/pipermail/synth-diy/>
> >>>    > Check your settings at:
> >>>    https://synth-diy.org/mailman/listinfo/synth-diy
> >>>    <https://synth-diy.org/mailman/listinfo/synth-diy>
> >>>    > Selling or trading? Use marketplace at synth-diy.org
> >>>    <mailto:marketplace at synth-diy.org>
> >>>    ________________________________________________________
> >>>    This is the Synth-diy mailing list
> >>>    Submit email to: Synth-diy at synth-diy.org
> >>>    <mailto:Synth-diy at synth-diy.org>
> >>>    View archive at: https://synth-diy.org/pipermail/synth-diy/
> >>>    <https://synth-diy.org/pipermail/synth-diy/>
> >>>    Check your settings at:
> >>>    https://synth-diy.org/mailman/listinfo/synth-diy
> >>>    <https://synth-diy.org/mailman/listinfo/synth-diy>
> >>>    Selling or trading? Use marketplace at synth-diy.org
> >>>    <mailto:marketplace at synth-diy.org>
> >>> ________________________________________________________
> >>> This is the Synth-diy mailing list
> >>> Submit email to: Synth-diy at synth-diy.org
> >>> View archive at: https://synth-diy.org/pipermail/synth-diy/
> >>> Check your settings at: https://synth-diy.org/mailman/listinfo/synth-diy
> >>> Selling or trading? Use marketplace at synth-diy.org
> > ________________________________________________________
> > This is the Synth-diy mailing list
> > Submit email to: Synth-diy at synth-diy.org
> > View archive at: https://synth-diy.org/pipermail/synth-diy/
> > Check your settings at: https://synth-diy.org/mailman/listinfo/synth-diy
> > Selling or trading? Use marketplace at synth-diy.org
> ________________________________________________________
> This is the Synth-diy mailing list
> Submit email to: Synth-diy at synth-diy.org
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> Selling or trading? Use marketplace at synth-diy.org


From cheater00social at gmail.com  Sat Aug  8 01:31:18 2026
From: cheater00social at gmail.com (cheater cheater)
Date: Sat, 8 Aug 2026 01:31:18 +0200
Subject: [sdiy] AI code generation
In-Reply-To: <KL1PR02MB66639E54C9044DA21715BE3DB3CC2@KL1PR02MB6663.apcprd02.prod.outlook.com>
References: <A4F5D2AB-4034-4882-97EB-B51B91025F6C@ericframpton.com>
 <F644BB29-0E4A-43F2-832F-CD7CCFC717DF@aol.com>
 <CWLP265MB713216E78A0E5E0BD025A0AFDBCF2@CWLP265MB7132.GBRP265.PROD.OUTLOOK.COM>
 <CAGn5V--yH8ZHmJujV_f_=s8PhSbMvOq6BUaT=VhAH7eGMjr2Ww@mail.gmail.com>
 <CALfiFhC_Gtq2VpCXTC3CU6Y6b3BRGyQC=osS_0agQx3OPr_ukA@mail.gmail.com>
 <CAGn5V-9LOzZMNp_+T1KoazezmgwU8whyHD-2Wq238VPzPexC6Q@mail.gmail.com>
 <CWLP265MB7132B087596877DB9083E8C2DBCE2@CWLP265MB7132.GBRP265.PROD.OUTLOOK.COM>
 <CAGn5V--iW1xRQw7Xt=5mam+8ASx_RTxcTKm8Y_k808muKEYcVw@mail.gmail.com>
 <CWLP265MB713287CEE53E7C6F46ABB63BDBCE2@CWLP265MB7132.GBRP265.PROD.OUTLOOK.COM>
 <3708F2AC-4EFE-4256-9BB2-F9A9E2361D78@stuyts.nl>
 <CAGn5V-_c-pZPx6eP94CvTzLVWAUYuVYnFhrwmOXjPsDVvNAB9Q@mail.gmail.com>
 <238e2abf-1ff7-4d16-8dcf-b8a5142ef756@musictechnologiesgroup.com>
 <CAKCSd-LMARXp_-MuUXWYDcMFvZnDOP5iRD9WH01KtRWDKB5scw@mail.gmail.com>
 <CAGn5V--0s-Y6pOpxW_gw2R6OM3aGzxr-kVyP+Yn7KzMLS+1iTQ@mail.gmail.com>
 <CAKCSd-+uvHgTtMLvtU0gb2MZdHuOZ5Q4rhGSZQojd=qvy07hvQ@mail.gmail.com>
 <CAKCSd-LEpOY=TF2j_YmobT3+2VpgrZqH45T4emuQ4MJXKgrBjA@mail.gmail.com>
 <CAGn5V-_3_TcvdYEoNTWBQQkpT8cS37zW=9=_iWVA78YKXoJ9bQ@mail.gmail.com>
 <CAGn5V--Ps7F5Y-tRdVxGr_FvQbzB2uA9Dij+7YMuCEdSk9DbDw@mail.gmail.com>
 <2B1387F0-A895-40C7-9AB6-F1F6886CF0B6@ericframpton.com>
 <CAGn5V--oFvf9562HTx6W-9t3tycnDhGxpHRs-kcgYxsKbdTAMw@mail.gmail.com>
 <3532F602-8DFF-4639-A8EF-1277287FADEF@ericframpton.com>
 <KL1PR02MB6663DFFD10CE307F181C6281B3CC2@KL1PR02MB6663.apcprd02.prod.outlook.com>
 <AE3FBF0C-761B-4FE8-9CDC-AAB359532D02@adambaby.com>
 <CA+R=RzC6xcCmWqFg3ysn6+136ZjvZOYOzTYj5mQFvvFrZUrSPg@mail.gmail.com>
 <KL1PR02MB66639E54C9044DA21715BE3DB3CC2@KL1PR02MB6663.apcprd02.prod.outlook.com>
Message-ID: <CAGn5V-9MOELKfo2rD63qXvyRf8NTF=BtzBi1UD2AR59EypDnog@mail.gmail.com>

Someone's been reverse engineering the Roland TR-6S using Claude and Ghidra:

https://averywagar.com/post/tr6s-part1/

I thought people in this thread might be interested

On Mon, Jul 27, 2026 at 11:33?AM Sean Ellis via Synth-diy
<synth-diy at synth-diy.org> wrote:
>
>
> For this project I've asked it to do any work in Arduino language and add comments on every line. Fantastic way to learn, not just to hand it off.
>
> ________________________________
> From: Synth-diy <synth-diy-bounces at synth-diy.org> on behalf of francesco mulassano via Synth-diy <synth-diy at synth-diy.org>
> Sent: Monday, 27 July 2026 10:08 AM
> To: Adam (synthDIY) <synthdiy at adambaby.com>
> Cc: SDIY <synth-diy at synth-diy.org>
> Subject: Re: [sdiy] AI code generation
>
>
> No, be careful.
>
> You need to know what you're doing, otherwise you'll never end up with something that's actually production-ready.
>
> Think of AI as a junior developer who writes code better and faster than you do, but who doesn't know what to do without your guidance. When it gets stuck or goes down the wrong path, you have to steer it in the right direction. And if you don't know how to solve the problem yourself... you're stuck too.
>
>
> Il giorno lun 27 lug 2026 alle ore 09:57 Adam (synthDIY) <synthdiy at adambaby.com> ha scritto:
>
>
>
> On 27 Jul 2026, at 17:41, Sean Ellis via Synth-diy <synth-diy at synth-diy.org> wrote:
>
> TBH, quite scary how knowledge is pretty useless now as long as you have access to LLMs.
>
>
>
>
> Ah HA! That's EXACTLY what "they" want you to think.....
>
> ;- )
> A
> ________________________________________________________
> This is the Synth-diy mailing list
> Submit email to: Synth-diy at synth-diy.org
> View archive at: https://synth-diy.org/pipermail/synth-diy/
> Check your settings at: https://synth-diy.org/mailman/listinfo/synth-diy
> Selling or trading? Use marketplace at synth-diy.org
>
> ________________________________________________________
> This is the Synth-diy mailing list
> Submit email to: Synth-diy at synth-diy.org
> View archive at: https://synth-diy.org/pipermail/synth-diy/
> Check your settings at: https://synth-diy.org/mailman/listinfo/synth-diy
> Selling or trading? Use marketplace at synth-diy.org


From rutgervlek at gmail.com  Sat Aug  8 10:58:22 2026
From: rutgervlek at gmail.com (Rutger Vlek)
Date: Sat, 8 Aug 2026 10:58:22 +0200
Subject: [sdiy] Great DIY polysynths
In-Reply-To: <C3749EFA-3F83-4866-886E-CF0DFF578940@gmail.com>
References: <8d39b147-20de-48b3-8663-138027f53f1f@go2.pl>
 <C3749EFA-3F83-4866-886E-CF0DFF578940@gmail.com>
Message-ID: <CAJ2Txe0QPQUUrXRebsx9CVSqS8G_oxg1N3iWwo+UrH5Xo0KZJQ@mail.gmail.com>

Oh that's a very good lesson. I was just wondering what to do with an old
monosynth I built years ago, and consider taking it apart. After hearing
your regrets I might not...

It' the one on the top picture (it was never a commercial product, only the
eurorack modules were):

https://www.synthtopia.com/content/2015/12/28/new-dutch-synthesizer-boutique-river-creative-technology/

I remember building it, not feeling very convinced about my own skills in
electronics, and deciding to stay safe by using Oakley sound modules for
the main audio path and building the supporting functions from PCBs etched
in my shared student-house kitchen. There's a gigantic ratsnest of wires
inside to connect all modules and the entire patch panel. The keyboard is
the cheapest I could find.

I still feel grateful to Tony from Oakley for all the support in learning
synth DIY. Over the last years I've been working on redesigning a new
'Ocean' with my own circuits from the ground up. Planning to share the
designs when they're sufficiently debugged and sounding good.

Best,

Rutger



Op vr 7 aug 2026, 20:33 schreef Chris McDowell via Synth-diy <
synth-diy at synth-diy.org>:

> Same here Roman, I took 'em all apart for no good reason.
>
> First and second polysynths though:
>
>
> Cheers,
> Chris
>
> > On Aug 7, 2026, at 11:50?AM, Roman Sowa via Synth-diy <
> synth-diy at synth-diy.org> wrote:
> > ?Too bad I can't show you my first synth. Or 2nd either.
> > I destroyed them, not thinking it's something an older me would love to
> have. :(
> >
> > Roman
> >
> > W dniu 2026-08-07 o 16:17, Benjamin Tremblay pisze:
> >> Ummm I?m not going to describe my first synths. I was 16.
> >> Benjamin Tremblay
> >>>> On Aug 7, 2026, at 10:06?AM, Jacob Watters via Synth-diy <
> synth-diy at synth-diy.org> wrote:
> >>> ?
> >>> For my first synth, I literally just stuck an old EQ front panel into
> it and reused all the pots in my own circuits. It's not pretty, but it got
> the job done.
> >>> https://www.jacobwatters.com/images/synth/synth1.jpg <
> https://www.jacobwatters.com/images/synth/synth1.jpg>
> >>> *Jacob Watters*
> >>> JacobWatters.com <http://jacobwatters.com/>
> >>>> On Fri, Aug 7, 2026 at 7:37?AM Roman Sowa via Synth-diy <
> synth-diy at synth-diy.org <mailto:synth-diy at synth-diy.org>> wrote:
> >>>    My first DIY modules had marking printed on paper, sprayed with
> >>>    transparent acrylic paint and glued to (mostly) aluminium panels.
> >>>    Still looks good today, reaching about 25 years.
> >>>    http://sowa.synth.net/modular/index.html
> >>>    <http://sowa.synth.net/modular/index.html>
> >>>    And my polysynth made a decade earlier didn't have any markings at
> >>>    all!
> >>>    Just beautfull color spray painted all over the steel plate panel.
> It
> >>>    didn't actually need any marking, because all controll was done by
> >>>    up/down & left/right arrows with 1x40 LCD. Kind of like the synth
> >>>    vibe
> >>>    was in early 90's
> >>>    Roman
> >>>    W dniu 2026-08-06 o 22:33, Oren Leavitt via Synth-diy pisze:
> >>>    >
> >>>    >
> >>>    > On 8/6/26 11:47 AM, Mike Bryant wrote:
> >>>    >> Actually comparing a lot of modern DIY stuff with 1960s/70s
> >>>    electronics,
> >>>    >> I think I know which looks a lot more 'homemade' ?
> >>>    >
> >>>    > When I built my first modular synth, I made front panels from
> >>>    sheets of
> >>>    > Masonite. I spray painted them white, applied labeling, dial
> >>>    ticks, and
> >>>    > other art with a fine ink pen with the aid of rulers or stencils.
> >>>    > Applied a top coat of Krylon to seal it all in. Came out pretty
> >>>    nice.
> >>>    >
> >>>    > One of several pictures of it on my Flickr:
> >>>    > https://flic.kr/p/2stGyzF <https://flic.kr/p/2stGyzF>
> >>>    >>
> >>>
> ------------------------------------------------------------------------
> >>>    >> *From:* Synth-diy <synth-diy-bounces at synth-diy.org
> >>>    <mailto:synth-diy-bounces at synth-diy.org>> on behalf of John
> >>>    >> via Synth-diy <synth-diy at synth-diy.org
> >>>    <mailto:synth-diy at synth-diy.org>>
> >>>    >> *Sent:* 06 August 2026 17:07
> >>>    >> *To:* SDIY List <synth-diy at synth-diy.org
> >>>    <mailto:synth-diy at synth-diy.org>>
> >>>    >> *Subject:* Re: [sdiy] Great DIY polysynths
> >>>    >> On Thu, 06 Aug 2026 15:20:09 +0000
> >>>    >> "Chromatest J. Pantsmaker via Synth-diy"
> >>>    <synth-diy at synth-diy.org <mailto:synth-diy at synth-diy.org>>
> >>>    >> wrote:
> >>>    >>
> >>>    >>> Your complaint is that the labels are on printed material
> >>>    instead of
> >>>    >>> silk screen? Really?
> >>>    >>
> >>>    >> "This DIY synthesizer being discussed on the synth-DIY mailing
> list
> >>>    >> looks distinctly DIY, what's up with that!?"
> >>>    >> ________________________________________________________
> >>>    >> This is the Synth-diy mailing list
> >>>    >> Submit email to: Synth-diy at synth-diy.org
> >>>    <mailto:Synth-diy at synth-diy.org>
> >>>    >> View archive at: https://synth-diy.org/pipermail/synth-diy/
> >>>    <https://synth-diy.org/pipermail/synth-diy/> <https://
> >>>    >> synth-diy.org/pipermail/synth-diy/
> >>>    <http://synth-diy.org/pipermail/synth-diy/>>
> >>>    >> Check your settings at:
> >>>    https://synth-diy.org/mailman/listinfo/synth-diy
> >>>    <https://synth-diy.org/mailman/listinfo/synth-diy>
> >>>    >> <https://synth-diy.org/mailman/listinfo/synth-diy
> >>>    <https://synth-diy.org/mailman/listinfo/synth-diy>>
> >>>    >> Selling or trading? Use marketplace at synth-diy.org
> >>>    <mailto:marketplace at synth-diy.org>
> >>>    >
> >>>    >
> >>>    >
> >>>    > ________________________________________________________
> >>>    > This is the Synth-diy mailing list
> >>>    > Submit email to: Synth-diy at synth-diy.org
> >>>    <mailto:Synth-diy at synth-diy.org>
> >>>    > View archive at: https://synth-diy.org/pipermail/synth-diy/
> >>>    <https://synth-diy.org/pipermail/synth-diy/>
> >>>    > Check your settings at:
> >>>    https://synth-diy.org/mailman/listinfo/synth-diy
> >>>    <https://synth-diy.org/mailman/listinfo/synth-diy>
> >>>    > Selling or trading? Use marketplace at synth-diy.org
> >>>    <mailto:marketplace at synth-diy.org>
> >>>    ________________________________________________________
> >>>    This is the Synth-diy mailing list
> >>>    Submit email to: Synth-diy at synth-diy.org
> >>>    <mailto:Synth-diy at synth-diy.org>
> >>>    View archive at: https://synth-diy.org/pipermail/synth-diy/
> >>>    <https://synth-diy.org/pipermail/synth-diy/>
> >>>    Check your settings at:
> >>>    https://synth-diy.org/mailman/listinfo/synth-diy
> >>>    <https://synth-diy.org/mailman/listinfo/synth-diy>
> >>>    Selling or trading? Use marketplace at synth-diy.org
> >>>    <mailto:marketplace at synth-diy.org>
> >>> ________________________________________________________
> >>> This is the Synth-diy mailing list
> >>> Submit email to: Synth-diy at synth-diy.org
> >>> View archive at: https://synth-diy.org/pipermail/synth-diy/
> >>> Check your settings at:
> https://synth-diy.org/mailman/listinfo/synth-diy
> >>> Selling or trading? Use marketplace at synth-diy.org
> > ________________________________________________________
> > This is the Synth-diy mailing list
> > Submit email to: Synth-diy at synth-diy.org
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> ________________________________________________________
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From grant at musictechnologiesgroup.com  Sat Aug  8 16:57:11 2026
From: grant at musictechnologiesgroup.com (grant musictechnologiesgroup.com)
Date: Sat, 8 Aug 2026 14:57:11 +0000
Subject: [sdiy] AI code generation
In-Reply-To: <CAGn5V-9MOELKfo2rD63qXvyRf8NTF=BtzBi1UD2AR59EypDnog@mail.gmail.com>
References: <A4F5D2AB-4034-4882-97EB-B51B91025F6C@ericframpton.com>
 <CAGn5V--0s-Y6pOpxW_gw2R6OM3aGzxr-kVyP+Yn7KzMLS+1iTQ@mail.gmail.com>
 <CAKCSd-+uvHgTtMLvtU0gb2MZdHuOZ5Q4rhGSZQojd=qvy07hvQ@mail.gmail.com>
 <CAKCSd-LEpOY=TF2j_YmobT3+2VpgrZqH45T4emuQ4MJXKgrBjA@mail.gmail.com>
 <CAGn5V-_3_TcvdYEoNTWBQQkpT8cS37zW=9=_iWVA78YKXoJ9bQ@mail.gmail.com>
 <CAGn5V--Ps7F5Y-tRdVxGr_FvQbzB2uA9Dij+7YMuCEdSk9DbDw@mail.gmail.com>
 <2B1387F0-A895-40C7-9AB6-F1F6886CF0B6@ericframpton.com>
 <CAGn5V--oFvf9562HTx6W-9t3tycnDhGxpHRs-kcgYxsKbdTAMw@mail.gmail.com>
 <3532F602-8DFF-4639-A8EF-1277287FADEF@ericframpton.com>
 <KL1PR02MB6663DFFD10CE307F181C6281B3CC2@KL1PR02MB6663.apcprd02.prod.outlook.com>
 <AE3FBF0C-761B-4FE8-9CDC-AAB359532D02@adambaby.com>
 <CA+R=RzC6xcCmWqFg3ysn6+136ZjvZOYOzTYj5mQFvvFrZUrSPg@mail.gmail.com>
 <KL1PR02MB66639E54C9044DA21715BE3DB3CC2@KL1PR02MB6663.apcprd02.prod.outlook.com>
 <CAGn5V-9MOELKfo2rD63qXvyRf8NTF=BtzBi1UD2AR59EypDnog@mail.gmail.com>
Message-ID: <0a578bf0-1403-4f76-8dea-fa42d54f70b1@musictechnologiesgroup.com>

I love that the panel MCU is a MIDI controller for the rest. Is this a 
pretty common technique? Reminds me of some laptop keyboards and/or 
trackpads that are USB HID devices. I think I've seen this before. 
Perhaps Korg.

On 8/7/2026 4:31 PM, cheater cheater via Synth-diy wrote:
> Someone's been reverse engineering the Roland TR-6S using Claude and Ghidra:
>
> https://averywagar.com/post/tr6s-part1/
>
> I thought people in this thread might be interested
>
> On Mon, Jul 27, 2026 at 11:33?AM Sean Ellis via Synth-diy
> <synth-diy at synth-diy.org> wrote:
>>
>> For this project I've asked it to do any work in Arduino language and add comments on every line. Fantastic way to learn, not just to hand it off.
>>
>> ________________________________
>> From: Synth-diy <synth-diy-bounces at synth-diy.org> on behalf of francesco mulassano via Synth-diy <synth-diy at synth-diy.org>
>> Sent: Monday, 27 July 2026 10:08 AM
>> To: Adam (synthDIY) <synthdiy at adambaby.com>
>> Cc: SDIY <synth-diy at synth-diy.org>
>> Subject: Re: [sdiy] AI code generation
>>
>>
>> No, be careful.
>>
>> You need to know what you're doing, otherwise you'll never end up with something that's actually production-ready.
>>
>> Think of AI as a junior developer who writes code better and faster than you do, but who doesn't know what to do without your guidance. When it gets stuck or goes down the wrong path, you have to steer it in the right direction. And if you don't know how to solve the problem yourself... you're stuck too.
>>
>>
>> Il giorno lun 27 lug 2026 alle ore 09:57 Adam (synthDIY) <synthdiy at adambaby.com> ha scritto:
>>
>>
>>
>> On 27 Jul 2026, at 17:41, Sean Ellis via Synth-diy <synth-diy at synth-diy.org> wrote:
>>
>> TBH, quite scary how knowledge is pretty useless now as long as you have access to LLMs.
>>
>>
>>
>>
>> Ah HA! That's EXACTLY what "they" want you to think.....
>>
>> ;- )
>> A
>> ________________________________________________________
>> This is the Synth-diy mailing list
>> Submit email to: Synth-diy at synth-diy.org
>> View archive at: https://synth-diy.org/pipermail/synth-diy/
>> Check your settings at: https://synth-diy.org/mailman/listinfo/synth-diy
>> Selling or trading? Use marketplace at synth-diy.org
>>
>> ________________________________________________________
>> This is the Synth-diy mailing list
>> Submit email to: Synth-diy at synth-diy.org
>> View archive at: https://synth-diy.org/pipermail/synth-diy/
>> Check your settings at: https://synth-diy.org/mailman/listinfo/synth-diy
>> Selling or trading? Use marketplace at synth-diy.org
> ________________________________________________________
> This is the Synth-diy mailing list
> Submit email to: Synth-diy at synth-diy.org
> View archive at: https://synth-diy.org/pipermail/synth-diy/
> Check your settings at: https://synth-diy.org/mailman/listinfo/synth-diy
> Selling or trading? Use marketplace at synth-diy.org



From rburnett at richieburnett.co.uk  Sat Aug  8 21:25:59 2026
From: rburnett at richieburnett.co.uk (rburnett at richieburnett.co.uk)
Date: Sat, 08 Aug 2026 20:25:59 +0100
Subject: [sdiy] Tr-808 resistor value
Message-ID: <2a3cfd2627e9a28a840f8cbe3f7fa735@richieburnett.co.uk>

Does anyone know the value of R324 in the Rimshot voicing circuit of 
Roland's TR-808 drum machine?

Seemed like a good day to ask ;-)

-Richie,
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From pete.hartman at gmail.com  Sat Aug  8 21:47:38 2026
From: pete.hartman at gmail.com (Pete Hartman)
Date: Sat, 8 Aug 2026 14:47:38 -0500
Subject: [sdiy] Tr-808 resistor value
In-Reply-To: <2a3cfd2627e9a28a840f8cbe3f7fa735@richieburnett.co.uk>
References: <2a3cfd2627e9a28a840f8cbe3f7fa735@richieburnett.co.uk>
Message-ID: <CACodTR8qtRRXbHORSp_5jaQDws7bn-c4mqBFSD4Ayrn-73mQZQ@mail.gmail.com>

The Yocto is an 808 clone of sorts, it has that resistor marked as 220K

Can't speak for the OG.

Pete

On Sat, Aug 8, 2026 at 2:34?PM <rburnett at richieburnett.co.uk> wrote:
>
> Does anyone know the value of R324 in the Rimshot voicing circuit of
> Roland's TR-808 drum machine?
>
> Seemed like a good day to ask ;-)
>
> -Richie,
> ________________________________________________________
> This is the Synth-diy mailing list
> Submit email to: Synth-diy at synth-diy.org
> View archive at: https://synth-diy.org/pipermail/synth-diy/
> Check your settings at: https://synth-diy.org/mailman/listinfo/synth-diy
> Selling or trading? Use marketplace at synth-diy.org


From sines_list at scale.la  Sat Aug  8 22:02:36 2026
From: sines_list at scale.la (Todd Sines)
Date: Sat, 8 Aug 2026 16:02:36 -0400
Subject: [sdiy] Tr-808 resistor value
In-Reply-To: <CACodTR8qtRRXbHORSp_5jaQDws7bn-c4mqBFSD4Ayrn-73mQZQ@mail.gmail.com>
References: <CACodTR8qtRRXbHORSp_5jaQDws7bn-c4mqBFSD4Ayrn-73mQZQ@mail.gmail.com>
Message-ID: <E04C6123-FFA0-4365-B625-FD6A6BFAF081@scale.la>

The RE-808 is supposed to be a 1:1 clone, it also is 220k. Sorry for not opening mine up but pretty certain that is it.
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Todd

> On Aug 8, 2026, at 3:55?PM, Pete Hartman via Synth-diy <synth-diy at synth-diy.org> wrote:
> 
> ?The Yocto is an 808 clone of sorts, it has that resistor marked as 220K
> 
> Can't speak for the OG.
> 
> Pete
> 
>> On Sat, Aug 8, 2026 at 2:34?PM <rburnett at richieburnett.co.uk> wrote:
>> 
>> Does anyone know the value of R324 in the Rimshot voicing circuit of
>> Roland's TR-808 drum machine?
>> 
>> Seemed like a good day to ask ;-)
>> 
>> -Richie,
>> ________________________________________________________
>> This is the Synth-diy mailing list
>> Submit email to: Synth-diy at synth-diy.org
>> View archive at: https://synth-diy.org/pipermail/synth-diy/
>> Check your settings at: https://synth-diy.org/mailman/listinfo/synth-diy
>> Selling or trading? Use marketplace at synth-diy.org
> 
> ________________________________________________________
> This is the Synth-diy mailing list
> Submit email to: Synth-diy at synth-diy.org
> View archive at: https://synth-diy.org/pipermail/synth-diy/
> Check your settings at: https://synth-diy.org/mailman/listinfo/synth-diy
> Selling or trading? Use marketplace at synth-diy.org

From chromatest at chromatest.net  Sat Aug  8 23:01:30 2026
From: chromatest at chromatest.net (Chromatest J. Pantsmaker)
Date: Sat, 08 Aug 2026 21:01:30 +0000
Subject: [sdiy] Tr-808 resistor value
In-Reply-To: <E04C6123-FFA0-4365-B625-FD6A6BFAF081@scale.la>
References: <CACodTR8qtRRXbHORSp_5jaQDws7bn-c4mqBFSD4Ayrn-73mQZQ@mail.gmail.com>
 <E04C6123-FFA0-4365-B625-FD6A6BFAF081@scale.la>
Message-ID: <V6uxLWTyv3IVeNc9_HiCgcrCMh5Yjc7bRI3wyfpBnSa-NFv0uP7yhOqQKwZaBnw8X1quU791y7ZDa3nSKxmR0KrrKnF1C3PaRAKVMu6jJI0=@chromatest.net>

It makes sense that it would be the same as R319, which is 220K.

-------- Original Message --------
On Saturday, 08/08/26 at 13:04 Todd Sines via Synth-diy <synth-diy at synth-diy.org> wrote:

> The RE-808 is supposed to be a 1:1 clone, it also is 220k. Sorry for not opening mine up but pretty certain that is it.
>
> Todd
>
>> On Aug 8, 2026, at 3:55?PM, Pete Hartman via Synth-diy <synth-diy at synth-diy.org> wrote:
>>
>> ?The Yocto is an 808 clone of sorts, it has that resistor marked as 220K
>>
>> Can't speak for the OG.
>>
>> Pete
>>
>>> On Sat, Aug 8, 2026 at 2:34?PM <rburnett at richieburnett.co.uk> wrote:
>>>
>>> Does anyone know the value of R324 in the Rimshot voicing circuit of
>>> Roland's TR-808 drum machine?
>>>
>>> Seemed like a good day to ask ;-)
>>>
>>> -Richie,
>>> ________________________________________________________
>>> This is the Synth-diy mailing list
>>> Submit email to: Synth-diy at synth-diy.org
>>> View archive at: https://synth-diy.org/pipermail/synth-diy/
>>> Check your settings at: https://synth-diy.org/mailman/listinfo/synth-diy
>>> Selling or trading? Use marketplace at synth-diy.org
>>
>> ________________________________________________________
>> This is the Synth-diy mailing list
>> Submit email to: Synth-diy at synth-diy.org
>> View archive at: https://synth-diy.org/pipermail/synth-diy/
>> Check your settings at: https://synth-diy.org/mailman/listinfo/synth-diy
>> Selling or trading? Use marketplace at synth-diy.org
>
> ________________________________________________________
> This is the Synth-diy mailing list
> Submit email to: Synth-diy at synth-diy.org
> View archive at: https://synth-diy.org/pipermail/synth-diy/
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> Selling or trading? Use marketplace at synth-diy.org
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From rainer at buchty.net  Sun Aug  9 00:37:57 2026
From: rainer at buchty.net (Rainer Buchty)
Date: Sun, 9 Aug 2026 00:37:57 +0200 (CEST)
Subject: [sdiy] AI code generation
In-Reply-To: <0a578bf0-1403-4f76-8dea-fa42d54f70b1@musictechnologiesgroup.com>
References: <A4F5D2AB-4034-4882-97EB-B51B91025F6C@ericframpton.com>
 <CAKCSd-+uvHgTtMLvtU0gb2MZdHuOZ5Q4rhGSZQojd=qvy07hvQ@mail.gmail.com>
 <CAKCSd-LEpOY=TF2j_YmobT3+2VpgrZqH45T4emuQ4MJXKgrBjA@mail.gmail.com>
 <CAGn5V-_3_TcvdYEoNTWBQQkpT8cS37zW=9=_iWVA78YKXoJ9bQ@mail.gmail.com>
 <CAGn5V--Ps7F5Y-tRdVxGr_FvQbzB2uA9Dij+7YMuCEdSk9DbDw@mail.gmail.com>
 <2B1387F0-A895-40C7-9AB6-F1F6886CF0B6@ericframpton.com>
 <CAGn5V--oFvf9562HTx6W-9t3tycnDhGxpHRs-kcgYxsKbdTAMw@mail.gmail.com>
 <3532F602-8DFF-4639-A8EF-1277287FADEF@ericframpton.com>
 <KL1PR02MB6663DFFD10CE307F181C6281B3CC2@KL1PR02MB6663.apcprd02.prod.outlook.com>
 <AE3FBF0C-761B-4FE8-9CDC-AAB359532D02@adambaby.com>
 <CA+R=RzC6xcCmWqFg3ysn6+136ZjvZOYOzTYj5mQFvvFrZUrSPg@mail.gmail.com>
 <KL1PR02MB66639E54C9044DA21715BE3DB3CC2@KL1PR02MB6663.apcprd02.prod.outlook.com>
 <CAGn5V-9MOELKfo2rD63qXvyRf8NTF=BtzBi1UD2AR59EypDnog@mail.gmail.com>
 <0a578bf0-1403-4f76-8dea-fa42d54f70b1@musictechnologiesgroup.com>
Message-ID: <46ce229c-173c-35f3-5023-a3c185bc241e@buchty.net>

On Sat, 8 Aug 2026, grant musictechnologiesgroup.com wrote:

> I love that the panel MCU is a MIDI controller for the rest. Is this a 
> pretty common technique?

Roland liked to play this game, it seems.

The JX8P also has a similar setup where the main board and the synth 
board essentially communicate via MIDI. The differentiation whether it 
is internal MIDI or "true" MIDI is IIRC a leading 0xf4.

It's even weirder that one board does MIDI in, and the other does MIDI 
out ...

Rainer


From btremblay at me.com  Sun Aug  9 01:17:53 2026
From: btremblay at me.com (Benjamin Tremblay)
Date: Sat, 8 Aug 2026 19:17:53 -0400
Subject: [sdiy] AI code generation
In-Reply-To: <46ce229c-173c-35f3-5023-a3c185bc241e@buchty.net>
References: <46ce229c-173c-35f3-5023-a3c185bc241e@buchty.net>
Message-ID: <9E497231-0FBC-40A2-BDA9-BB901D2E739C@me.com>

I am in favor of manners and being respectful of my colleagues.

I have never been devoted to hardcore synth electronics. I just can?t do it all, don?t have the tools, don?t have a proper bench, don?t have the hands, the patience, the funds, the cad skills, the milling machines, or the plumbing. 
But much respect for all those who delve into these topics. I am an impetuous slob with no musical ability. I just love the process of creating playable electronic instruments, and I know all the high-level sound simulation software is rooted in real hardware I can dimly remember from my youth.  It is a joy to learn here, and as an American it fascinates me to see there are still places in the world where hobbies are normal and mutually appreciated. 
So no, I absolutely do not need to rattle on about AI. Not when a germanium transistor needs a home. 

Benjamin Tremblay

> On Aug 8, 2026, at 6:46?PM, Rainer Buchty <rainer at buchty.net> wrote:
> 
> ?On Sat, 8 Aug 2026, grant musictechnologiesgroup.com wrote:
> 
>> I love that the panel MCU is a MIDI controller for the rest. Is this a pretty common technique?
> 
> Roland liked to play this game, it seems.
> 
> The JX8P also has a similar setup where the main board and the synth board essentially communicate via MIDI. The differentiation whether it is internal MIDI or "true" MIDI is IIRC a leading 0xf4.
> 
> It's even weirder that one board does MIDI in, and the other does MIDI out ...
> 
> Rainer
> 
> ________________________________________________________
> This is the Synth-diy mailing list
> Submit email to: Synth-diy at synth-diy.org
> View archive at: https://synth-diy.org/pipermail/synth-diy/
> Check your settings at: https://synth-diy.org/mailman/listinfo/synth-diy
> Selling or trading? Use marketplace at synth-diy.org


From synthdiy at adambaby.com  Sun Aug  9 01:30:16 2026
From: synthdiy at adambaby.com (Adam (synthDIY))
Date: Sun, 9 Aug 2026 09:30:16 +1000
Subject: [sdiy] AI code generation
In-Reply-To: <46ce229c-173c-35f3-5023-a3c185bc241e@buchty.net>
References: <A4F5D2AB-4034-4882-97EB-B51B91025F6C@ericframpton.com>
 <CAKCSd-+uvHgTtMLvtU0gb2MZdHuOZ5Q4rhGSZQojd=qvy07hvQ@mail.gmail.com>
 <CAKCSd-LEpOY=TF2j_YmobT3+2VpgrZqH45T4emuQ4MJXKgrBjA@mail.gmail.com>
 <CAGn5V-_3_TcvdYEoNTWBQQkpT8cS37zW=9=_iWVA78YKXoJ9bQ@mail.gmail.com>
 <CAGn5V--Ps7F5Y-tRdVxGr_FvQbzB2uA9Dij+7YMuCEdSk9DbDw@mail.gmail.com>
 <2B1387F0-A895-40C7-9AB6-F1F6886CF0B6@ericframpton.com>
 <CAGn5V--oFvf9562HTx6W-9t3tycnDhGxpHRs-kcgYxsKbdTAMw@mail.gmail.com>
 <3532F602-8DFF-4639-A8EF-1277287FADEF@ericframpton.com>
 <KL1PR02MB6663DFFD10CE307F181C6281B3CC2@KL1PR02MB6663.apcprd02.prod.outlook.com>
 <AE3FBF0C-761B-4FE8-9CDC-AAB359532D02@adambaby.com>
 <CA+R=RzC6xcCmWqFg3ysn6+136ZjvZOYOzTYj5mQFvvFrZUrSPg@mail.gmail.com>
 <KL1PR02MB66639E54C9044DA21715BE3DB3CC2@KL1PR02MB6663.apcprd02.prod.outlook.com>
 <CAGn5V-9MOELKfo2rD63qXvyRf8NTF=BtzBi1UD2AR59EypDnog@mail.gmail.com>
 <0a578bf0-1403-4f76-8dea-fa42d54f70b1@musictechnologiesgroup.com>
 <46ce229c-173c-35f3-5023-a3c185bc241e@buchty.net>
Message-ID: <604AB861-6E23-4817-B7D3-5B63DEF9497B@adambaby.com>

Rainer that's interesting. I wonder if that's similar to the JX3P's communication with the PG-200?

A

> On 9 Aug 2026, at 08:37, Rainer Buchty <rainer at buchty.net> wrote:
> 
> On Sat, 8 Aug 2026, grant musictechnologiesgroup.com wrote:
> 
>> I love that the panel MCU is a MIDI controller for the rest. Is this a pretty common technique?
> 
> Roland liked to play this game, it seems.
> 
> The JX8P also has a similar setup where the main board and the synth board essentially communicate via MIDI. The differentiation whether it is internal MIDI or "true" MIDI is IIRC a leading 0xf4.
> 
> It's even weirder that one board does MIDI in, and the other does MIDI out ...
> 
> Rainer
> 



From gordonjcp at gjcp.net  Sun Aug  9 10:46:09 2026
From: gordonjcp at gjcp.net (Gordonjcp)
Date: Sun, 9 Aug 2026 09:46:09 +0100
Subject: [sdiy] AI code generation
In-Reply-To: <46ce229c-173c-35f3-5023-a3c185bc241e@buchty.net>
References: <2B1387F0-A895-40C7-9AB6-F1F6886CF0B6@ericframpton.com>
 <CAGn5V--oFvf9562HTx6W-9t3tycnDhGxpHRs-kcgYxsKbdTAMw@mail.gmail.com>
 <3532F602-8DFF-4639-A8EF-1277287FADEF@ericframpton.com>
 <KL1PR02MB6663DFFD10CE307F181C6281B3CC2@KL1PR02MB6663.apcprd02.prod.outlook.com>
 <AE3FBF0C-761B-4FE8-9CDC-AAB359532D02@adambaby.com>
 <CA+R=RzC6xcCmWqFg3ysn6+136ZjvZOYOzTYj5mQFvvFrZUrSPg@mail.gmail.com>
 <KL1PR02MB66639E54C9044DA21715BE3DB3CC2@KL1PR02MB6663.apcprd02.prod.outlook.com>
 <CAGn5V-9MOELKfo2rD63qXvyRf8NTF=BtzBi1UD2AR59EypDnog@mail.gmail.com>
 <0a578bf0-1403-4f76-8dea-fa42d54f70b1@musictechnologiesgroup.com>
 <46ce229c-173c-35f3-5023-a3c185bc241e@buchty.net>
Message-ID: <20260809084609.GA7065@gjcp.net>

On Sun, Aug 09, 2026 at 12:37:57AM +0200, Rainer Buchty wrote:
> On Sat, 8 Aug 2026, grant musictechnologiesgroup.com wrote:
> 
> > I love that the panel MCU is a MIDI controller for the rest. Is this a
> > pretty common technique?
> 
> Roland liked to play this game, it seems.
> 
> The JX8P also has a similar setup where the main board and the synth board
> essentially communicate via MIDI. The differentiation whether it is internal
> MIDI or "true" MIDI is IIRC a leading 0xf4.

The Juno 106 does the same thing, sending $FD or $F9 to select the module board or MIDI port respectively. On encountering one of these bytes the interrupt routine will set an IO line high or low to gate the message in the appropriate direction.

The voice board uses one- or two-byte messages, with $80 to $85 for "voice off", $86 and $87 for sustain on/off, $88 to $8d for note on followed by the note number, and everything above that for the 16 voice parameters (14 sliders and two bitfields).

Clever stuff!

-- 
Gordonjcp

From rainer at buchty.net  Sun Aug  9 18:04:21 2026
From: rainer at buchty.net (Rainer Buchty)
Date: Sun, 9 Aug 2026 18:04:21 +0200 (CEST)
Subject: [sdiy] AI code generation
In-Reply-To: <20260809084609.GA7065@gjcp.net>
References: <2B1387F0-A895-40C7-9AB6-F1F6886CF0B6@ericframpton.com>
 <CAGn5V--oFvf9562HTx6W-9t3tycnDhGxpHRs-kcgYxsKbdTAMw@mail.gmail.com>
 <3532F602-8DFF-4639-A8EF-1277287FADEF@ericframpton.com>
 <KL1PR02MB6663DFFD10CE307F181C6281B3CC2@KL1PR02MB6663.apcprd02.prod.outlook.com>
 <AE3FBF0C-761B-4FE8-9CDC-AAB359532D02@adambaby.com>
 <CA+R=RzC6xcCmWqFg3ysn6+136ZjvZOYOzTYj5mQFvvFrZUrSPg@mail.gmail.com>
 <KL1PR02MB66639E54C9044DA21715BE3DB3CC2@KL1PR02MB6663.apcprd02.prod.outlook.com>
 <CAGn5V-9MOELKfo2rD63qXvyRf8NTF=BtzBi1UD2AR59EypDnog@mail.gmail.com>
 <0a578bf0-1403-4f76-8dea-fa42d54f70b1@musictechnologiesgroup.com>
 <46ce229c-173c-35f3-5023-a3c185bc241e@buchty.net>
 <20260809084609.GA7065@gjcp.net>
Message-ID: <952d2ba5-e5bc-5c49-6436-c1b6a5192fa0@buchty.net>

On Sun, 9 Aug 2026, Gordonjcp wrote:

> The Juno 106 does the same thing, sending $FD or $F9 to select the 
> module board or MIDI port respectively. On encountering one of these 
> bytes the interrupt routine will set an IO line high or low to gate 
> the message in the appropriate direction.

Yes, it's $f4 (internal/assigner) or $f5 (external/MIDI) on the JX8P.

> The voice board uses one- or two-byte messages, with $80 to $85 for 
> "voice off", $86 and $87 for sustain on/off, $88 to $8d for note on 
> followed by the note number, and everything above that for the 16 
> voice parameters (14 sliders and two bitfields).

I'd need to check the source again, the scribbles I found on this 
machine's harddrive were certainly understandable to me back in 2018, 
when I did them, but right now make me scratch my head :)

>From that very text file, it seems that the inter-board communication is 
indeed done in plain MIDI (with support for $80/$90/$c0/$c0/$e0 (no $a0) 
channel commands and $f7/$f0 plus 5 different SYX operation codes; only 
12 controllers defined ($00-$0b, mapping to 1/5/7/64/65/$7a-$7f and a 
weird one).

Programmer communication takes place using a <cmd> <val> scheme, where 
<cmd> seems to be the parameter number as outlined in the service manual 
-11 | 0x80.

Rainer


From brianw at audiobanshee.com  Mon Aug 10 00:49:56 2026
From: brianw at audiobanshee.com (brianw)
Date: Sun, 9 Aug 2026 18:49:56 -0400
Subject: [sdiy] keyboard controller MCU protocols (was Re:  ...)
In-Reply-To: <604AB861-6E23-4817-B7D3-5B63DEF9497B@adambaby.com>
References: <A4F5D2AB-4034-4882-97EB-B51B91025F6C@ericframpton.com>
 <CAKCSd-+uvHgTtMLvtU0gb2MZdHuOZ5Q4rhGSZQojd=qvy07hvQ@mail.gmail.com>
 <CAKCSd-LEpOY=TF2j_YmobT3+2VpgrZqH45T4emuQ4MJXKgrBjA@mail.gmail.com>
 <CAGn5V-_3_TcvdYEoNTWBQQkpT8cS37zW=9=_iWVA78YKXoJ9bQ@mail.gmail.com>
 <CAGn5V--Ps7F5Y-tRdVxGr_FvQbzB2uA9Dij+7YMuCEdSk9DbDw@mail.gmail.com>
 <2B1387F0-A895-40C7-9AB6-F1F6886CF0B6@ericframpton.com>
 <CAGn5V--oFvf9562HTx6W-9t3tycnDhGxpHRs-kcgYxsKbdTAMw@mail.gmail.com>
 <3532F602-8DFF-4639-A8EF-1277287FADEF@ericframpton.com>
 <KL1PR02MB6663DFFD10CE307F181C6281B3CC2@KL1PR02MB6663.apcprd02.prod.outlook.com>
 <AE3FBF0C-761B-4FE8-9CDC-AAB359532D02@adambaby.com>
 <CA+R=RzC6xcCmWqFg3ysn6+136ZjvZOYOzTYj5mQFvvFrZUrSPg@mail.gmail.com>
 <KL1PR02MB66639E54C9044DA21715BE3DB3CC2@KL1PR02MB6663.apcprd02.prod.outlook.com>
 <CAGn5V-9MOELKfo2rD63qXvyRf8NTF=BtzBi1UD2AR59EypDnog@mail.gmail.com>
 <0a578bf0-1403-4f76-8dea-fa42d54f70b1@musictechnologiesgroup.com>
 <46ce229c-173c-35f3-5023-a3c185bc241e@buchty.net>
 <604AB861-6E23-4817-B7D3-5B63DEF9497B@adambaby.com>
Message-ID: <AD72795B-6A73-47D5-B900-D5DD11173AF2@audiobanshee.com>

Anyone interested in protocols similar to MIDI should look for The 'USI', or Universal Synthesizer Interface, by Dave Smith and Chet Wood. It's available for download by AES members from their library. I found it fascinating to see what was proposed before MIDI, and to see the tradeoffs. USI was more flexible in terms of bit depths for all values, but the protocol might take a while to synchronize if you attached the serial cable in the middle of a data stream.

While repairing my Ensoniq Performance Sampler, I learned that their polyphonic aftertouch board has its own processor - which is more powerful that some synthesizers main processor - just for reading the keyboard. Then, between the keyboard processor and the main sampler processor, there is an 8-bit bus ribbon cable, and a protocol something like MIDI. I never bothered to reverse-engineer the protocol (since I was so happy to get the polyAT working again). This board has a name (that I've forgotten) and was used in several keyboards from the EPS to the VFX and maybe beyond.

Adam, are you talking about Roland's DCB? That was supposedly the inspiration for MIDI, but USI came between DCB and MIDI, so it might be quite different.

Brian Willoughby


On Aug 8, 2026, at 7:30 PM, Adam wrote:
> Rainer that's interesting. I wonder if that's similar to the JX3P's communication with the PG-200?
> 
> A
> 
> On 9 Aug 2026, at 08:37, Rainer Buchty wrote:
>> On Sat, 8 Aug 2026, grant musictechnologiesgroup.com wrote:
>>> I love that the panel MCU is a MIDI controller for the rest. Is this a pretty common technique?
>> 
>> Roland liked to play this game, it seems.
>> 
>> The JX8P also has a similar setup where the main board and the synth board essentially communicate via MIDI. The differentiation whether it is internal MIDI or "true" MIDI is IIRC a leading 0xf4.
>> 
>> It's even weirder that one board does MIDI in, and the other does MIDI out ...
>> 
>> Rainer



From grant at musictechnologiesgroup.com  Mon Aug 10 01:45:15 2026
From: grant at musictechnologiesgroup.com (grant musictechnologiesgroup.com)
Date: Sun, 9 Aug 2026 23:45:15 +0000
Subject: [sdiy] keyboard controller MCU protocols (was Re: ...)
In-Reply-To: <AD72795B-6A73-47D5-B900-D5DD11173AF2@audiobanshee.com>
References: <A4F5D2AB-4034-4882-97EB-B51B91025F6C@ericframpton.com>
 <CAGn5V-_3_TcvdYEoNTWBQQkpT8cS37zW=9=_iWVA78YKXoJ9bQ@mail.gmail.com>
 <CAGn5V--Ps7F5Y-tRdVxGr_FvQbzB2uA9Dij+7YMuCEdSk9DbDw@mail.gmail.com>
 <2B1387F0-A895-40C7-9AB6-F1F6886CF0B6@ericframpton.com>
 <CAGn5V--oFvf9562HTx6W-9t3tycnDhGxpHRs-kcgYxsKbdTAMw@mail.gmail.com>
 <3532F602-8DFF-4639-A8EF-1277287FADEF@ericframpton.com>
 <KL1PR02MB6663DFFD10CE307F181C6281B3CC2@KL1PR02MB6663.apcprd02.prod.outlook.com>
 <AE3FBF0C-761B-4FE8-9CDC-AAB359532D02@adambaby.com>
 <CA+R=RzC6xcCmWqFg3ysn6+136ZjvZOYOzTYj5mQFvvFrZUrSPg@mail.gmail.com>
 <KL1PR02MB66639E54C9044DA21715BE3DB3CC2@KL1PR02MB6663.apcprd02.prod.outlook.com>
 <CAGn5V-9MOELKfo2rD63qXvyRf8NTF=BtzBi1UD2AR59EypDnog@mail.gmail.com>
 <0a578bf0-1403-4f76-8dea-fa42d54f70b1@musictechnologiesgroup.com>
 <46ce229c-173c-35f3-5023-a3c185bc241e@buchty.net>
 <604AB861-6E23-4817-B7D3-5B63DEF9497B@adambaby.com>
 <AD72795B-6A73-47D5-B900-D5DD11173AF2@audiobanshee.com>
Message-ID: <37f360b5-e229-4718-a697-ad07bedb2126@musictechnologiesgroup.com>

The Ensoniq thing was the KPC board. In the beforetime, I managed to 
have a handful of these boards and had no need for them. Since they were 
Motorola HC11 boards, and that was my MCU du jour at the time, I used 
them for other odd projects.? I think my projects were small enough to 
fit in the onboard EEPROM, so there was no need to use an external 
EPROM. I did read-out the EPROM for posterity though.

GB

On 8/9/2026 3:49 PM, brianw wrote:
> Anyone interested in protocols similar to MIDI should look for The 'USI', or Universal Synthesizer Interface, by Dave Smith and Chet Wood. It's available for download by AES members from their library. I found it fascinating to see what was proposed before MIDI, and to see the tradeoffs. USI was more flexible in terms of bit depths for all values, but the protocol might take a while to synchronize if you attached the serial cable in the middle of a data stream.
>
> While repairing my Ensoniq Performance Sampler, I learned that their polyphonic aftertouch board has its own processor - which is more powerful that some synthesizers main processor - just for reading the keyboard. Then, between the keyboard processor and the main sampler processor, there is an 8-bit bus ribbon cable, and a protocol something like MIDI. I never bothered to reverse-engineer the protocol (since I was so happy to get the polyAT working again). This board has a name (that I've forgotten) and was used in several keyboards from the EPS to the VFX and maybe beyond.
>
> Adam, are you talking about Roland's DCB? That was supposedly the inspiration for MIDI, but USI came between DCB and MIDI, so it might be quite different.
>
> Brian Willoughby
>
>
> On Aug 8, 2026, at 7:30 PM, Adam wrote:
>> Rainer that's interesting. I wonder if that's similar to the JX3P's communication with the PG-200?
>>
>> A
>>
>> On 9 Aug 2026, at 08:37, Rainer Buchty wrote:
>>> On Sat, 8 Aug 2026, grant musictechnologiesgroup.com wrote:
>>>> I love that the panel MCU is a MIDI controller for the rest. Is this a pretty common technique?
>>> Roland liked to play this game, it seems.
>>>
>>> The JX8P also has a similar setup where the main board and the synth board essentially communicate via MIDI. The differentiation whether it is internal MIDI or "true" MIDI is IIRC a leading 0xf4.
>>>
>>> It's even weirder that one board does MIDI in, and the other does MIDI out ...
>>>
>>> Rainer
>
> ________________________________________________________
> This is the Synth-diy mailing list
> Submit email to: Synth-diy at synth-diy.org
> View archive at: https://synth-diy.org/pipermail/synth-diy/
> Check your settings at: https://synth-diy.org/mailman/listinfo/synth-diy
> Selling or trading? Use marketplace at synth-diy.org



From synthdiy at adambaby.com  Mon Aug 10 03:11:01 2026
From: synthdiy at adambaby.com (Adam (synthDIY))
Date: Mon, 10 Aug 2026 11:11:01 +1000
Subject: [sdiy] keyboard controller MCU protocols (was Re:  ...)
In-Reply-To: <AD72795B-6A73-47D5-B900-D5DD11173AF2@audiobanshee.com>
References: <A4F5D2AB-4034-4882-97EB-B51B91025F6C@ericframpton.com>
 <CAKCSd-+uvHgTtMLvtU0gb2MZdHuOZ5Q4rhGSZQojd=qvy07hvQ@mail.gmail.com>
 <CAKCSd-LEpOY=TF2j_YmobT3+2VpgrZqH45T4emuQ4MJXKgrBjA@mail.gmail.com>
 <CAGn5V-_3_TcvdYEoNTWBQQkpT8cS37zW=9=_iWVA78YKXoJ9bQ@mail.gmail.com>
 <CAGn5V--Ps7F5Y-tRdVxGr_FvQbzB2uA9Dij+7YMuCEdSk9DbDw@mail.gmail.com>
 <2B1387F0-A895-40C7-9AB6-F1F6886CF0B6@ericframpton.com>
 <CAGn5V--oFvf9562HTx6W-9t3tycnDhGxpHRs-kcgYxsKbdTAMw@mail.gmail.com>
 <3532F602-8DFF-4639-A8EF-1277287FADEF@ericframpton.com>
 <KL1PR02MB6663DFFD10CE307F181C6281B3CC2@KL1PR02MB6663.apcprd02.prod.outlook.com>
 <AE3FBF0C-761B-4FE8-9CDC-AAB359532D02@adambaby.com>
 <CA+R=RzC6xcCmWqFg3ysn6+136ZjvZOYOzTYj5mQFvvFrZUrSPg@mail.gmail.com>
 <KL1PR02MB66639E54C9044DA21715BE3DB3CC2@KL1PR02MB6663.apcprd02.prod.outlook.com>
 <CAGn5V-9MOELKfo2rD63qXvyRf8NTF=BtzBi1UD2AR59EypDnog@mail.gmail.com>
 <0a578bf0-1403-4f76-8dea-fa42d54f70b1@musictechnologiesgroup.com>
 <46ce229c-173c-35f3-5023-a3c185bc241e@buchty.net>
 <604AB861-6E23-4817-B7D3-5B63DEF9497B@adambaby.com>
 <AD72795B-6A73-47D5-B900-D5DD11173AF2@audiobanshee.com>
Message-ID: <9D7C1A4C-AF09-43B9-8080-FF2A4A0227D6@adambaby.com>



> On 10 Aug 2026, at 08:49, brianw <brianw at audiobanshee.com> wrote:
> 
> Adam, are you talking about Roland's DCB? That was supposedly the inspiration for MIDI, but USI came between DCB and MIDI, so it might be quite different.
> 
> Brian Willoughby

Hi Brian
I actually still use DCB! I have a Roland MD-8 that acts as a midi interface for my Jupiter 8. It converts DCB to MIDI, MIDI to DCB, or 2 way communication! 
Although my Jupe is a fairly early one, it originally belonged to a touring band, and had multiple upgrades back in the day including the DCB board.

I think the JX-3P was either the first or second midi synth Roland produced - so the programmer protocol would likely be a bit later than DCB, but I certainly don't know for sure.

A




> On Aug 8, 2026, at 7:30 PM, Adam wrote:
>> Rainer that's interesting. I wonder if that's similar to the JX3P's communication with the PG-200?
>> 
>> A
>> 
>> On 9 Aug 2026, at 08:37, Rainer Buchty wrote:
>>> On Sat, 8 Aug 2026, grant musictechnologiesgroup.com wrote:
>>>> I love that the panel MCU is a MIDI controller for the rest. Is this a pretty common technique?
>>> 
>>> Roland liked to play this game, it seems.
>>> 
>>> The JX8P also has a similar setup where the main board and the synth board essentially communicate via MIDI. The differentiation whether it is internal MIDI or "true" MIDI is IIRC a leading 0xf4.
>>> 
>>> It's even weirder that one board does MIDI in, and the other does MIDI out ...
>>> 
>>> Rainer
> 
> 
> ________________________________________________________
> This is the Synth-diy mailing list
> Submit email to: Synth-diy at synth-diy.org
> View archive at: https://synth-diy.org/pipermail/synth-diy/
> Check your settings at: https://synth-diy.org/mailman/listinfo/synth-diy
> Selling or trading? Use marketplace at synth-diy.org



From saure at put.as  Tue Aug 11 10:11:29 2026
From: saure at put.as (saure)
Date: Tue, 11 Aug 2026 09:11:29 +0100
Subject: [sdiy] Tr-808 resistor value
In-Reply-To: <2a3cfd2627e9a28a840f8cbe3f7fa735@richieburnett.co.uk>
References: <2a3cfd2627e9a28a840f8cbe3f7fa735@richieburnett.co.uk>
Message-ID: <ec57a067-3b2f-4ba1-a604-4f91c4d498c8@put.as>

It is 220K

On 08/08/2026 20:25, rburnett at richieburnett.co.uk wrote:
> Does anyone know the value of R324 in the Rimshot voicing circuit of 
> Roland's TR-808 drum machine?
>
> Seemed like a good day to ask ;-)
>
> -Richie,
>
> ________________________________________________________
> This is the Synth-diy mailing list
> Submit email to: Synth-diy at synth-diy.org
> View archive at: https://synth-diy.org/pipermail/synth-diy/
> Check your settings at: https://synth-diy.org/mailman/listinfo/synth-diy
> Selling or trading? Use marketplace at synth-diy.org


From modular at go2.pl  Tue Aug 11 13:27:41 2026
From: modular at go2.pl (Roman Sowa)
Date: Tue, 11 Aug 2026 13:27:41 +0200
Subject: [sdiy] AI code generation
In-Reply-To: <0a578bf0-1403-4f76-8dea-fa42d54f70b1@musictechnologiesgroup.com>
References: <A4F5D2AB-4034-4882-97EB-B51B91025F6C@ericframpton.com>
 <CAKCSd-+uvHgTtMLvtU0gb2MZdHuOZ5Q4rhGSZQojd=qvy07hvQ@mail.gmail.com>
 <CAKCSd-LEpOY=TF2j_YmobT3+2VpgrZqH45T4emuQ4MJXKgrBjA@mail.gmail.com>
 <CAGn5V-_3_TcvdYEoNTWBQQkpT8cS37zW=9=_iWVA78YKXoJ9bQ@mail.gmail.com>
 <CAGn5V--Ps7F5Y-tRdVxGr_FvQbzB2uA9Dij+7YMuCEdSk9DbDw@mail.gmail.com>
 <2B1387F0-A895-40C7-9AB6-F1F6886CF0B6@ericframpton.com>
 <CAGn5V--oFvf9562HTx6W-9t3tycnDhGxpHRs-kcgYxsKbdTAMw@mail.gmail.com>
 <3532F602-8DFF-4639-A8EF-1277287FADEF@ericframpton.com>
 <KL1PR02MB6663DFFD10CE307F181C6281B3CC2@KL1PR02MB6663.apcprd02.prod.outlook.com>
 <AE3FBF0C-761B-4FE8-9CDC-AAB359532D02@adambaby.com>
 <CA+R=RzC6xcCmWqFg3ysn6+136ZjvZOYOzTYj5mQFvvFrZUrSPg@mail.gmail.com>
 <KL1PR02MB66639E54C9044DA21715BE3DB3CC2@KL1PR02MB6663.apcprd02.prod.outlook.com>
 <CAGn5V-9MOELKfo2rD63qXvyRf8NTF=BtzBi1UD2AR59EypDnog@mail.gmail.com>
 <0a578bf0-1403-4f76-8dea-fa42d54f70b1@musictechnologiesgroup.com>
Message-ID: <6184d6b2-741d-43f6-be0e-1f0a0d11402e@go2.pl>

In most cases I haven't dig down so much to analyze the transmission, it 
was rarely the problem anyway, and first time I saw it was when 
servicing Polyevolver keyboard. I was really surprised that all controls 
and voice assignment is done with plain MIDI messages, they were 
possibly faster than MIDI, but I can't remember correctly.

This is possibly the easiest and pretty common when you have MIDI input 
in a synth.

To mention my long time ongoing project, I did exactly the same. MIDI in 
from external world and MIDI IN from the panel. Main reason is that I 
can simply merge those 2 and throw at CV/voice control without caring if 
it came from external controller or its own panel. One set of procedures 
for all.

Roman

W dniu 2026-08-08 o?16:57, grant musictechnologiesgroup.com pisze:
> I love that the panel MCU is a MIDI controller for the rest. Is this a
> pretty common technique? Reminds me of some laptop keyboards and/or
> trackpads that are USB HID devices. I think I've seen this before.
> Perhaps Korg.
> 
> On 8/7/2026 4:31 PM, cheater cheater via Synth-diy wrote:
>> Someone's been reverse engineering the Roland TR-6S using Claude and Ghidra:
>>
>> https://averywagar.com/post/tr6s-part1/
>>
>> I thought people in this thread might be interested
>>
>> On Mon, Jul 27, 2026 at 11:33?AM Sean Ellis via Synth-diy
>> <synth-diy at synth-diy.org> wrote:
>>>
>>> For this project I've asked it to do any work in Arduino language and add comments on every line. Fantastic way to learn, not just to hand it off.
>>>
>>> ________________________________
>>> From: Synth-diy <synth-diy-bounces at synth-diy.org> on behalf of francesco mulassano via Synth-diy <synth-diy at synth-diy.org>
>>> Sent: Monday, 27 July 2026 10:08 AM
>>> To: Adam (synthDIY) <synthdiy at adambaby.com>
>>> Cc: SDIY <synth-diy at synth-diy.org>
>>> Subject: Re: [sdiy] AI code generation
>>>
>>>
>>> No, be careful.
>>>
>>> You need to know what you're doing, otherwise you'll never end up with something that's actually production-ready.
>>>
>>> Think of AI as a junior developer who writes code better and faster than you do, but who doesn't know what to do without your guidance. When it gets stuck or goes down the wrong path, you have to steer it in the right direction. And if you don't know how to solve the problem yourself... you're stuck too.
>>>
>>>
>>> Il giorno lun 27 lug 2026 alle ore 09:57 Adam (synthDIY) <synthdiy at adambaby.com> ha scritto:
>>>
>>>
>>>
>>> On 27 Jul 2026, at 17:41, Sean Ellis via Synth-diy <synth-diy at synth-diy.org> wrote:
>>>
>>> TBH, quite scary how knowledge is pretty useless now as long as you have access to LLMs.
>>>
>>>
>>>
>>>
>>> Ah HA! That's EXACTLY what "they" want you to think.....
>>>
>>> ;- )
>>> A
>>> ________________________________________________________
>>> This is the Synth-diy mailing list
>>> Submit email to: Synth-diy at synth-diy.org
>>> View archive at: https://synth-diy.org/pipermail/synth-diy/
>>> Check your settings at: https://synth-diy.org/mailman/listinfo/synth-diy
>>> Selling or trading? Use marketplace at synth-diy.org
>>>
>>> ________________________________________________________
>>> This is the Synth-diy mailing list
>>> Submit email to: Synth-diy at synth-diy.org
>>> View archive at: https://synth-diy.org/pipermail/synth-diy/
>>> Check your settings at: https://synth-diy.org/mailman/listinfo/synth-diy
>>> Selling or trading? Use marketplace at synth-diy.org
>> ________________________________________________________
>> This is the Synth-diy mailing list
>> Submit email to: Synth-diy at synth-diy.org
>> View archive at: https://synth-diy.org/pipermail/synth-diy/
>> Check your settings at: https://synth-diy.org/mailman/listinfo/synth-diy
>> Selling or trading? Use marketplace at synth-diy.org
> 
> 
> ________________________________________________________
> This is the Synth-diy mailing list
> Submit email to: Synth-diy at synth-diy.org
> View archive at: https://synth-diy.org/pipermail/synth-diy/
> Check your settings at: https://synth-diy.org/mailman/listinfo/synth-diy
> Selling or trading? Use marketplace at synth-diy.org

From tom at electricdruid.net  Tue Aug 11 13:41:19 2026
From: tom at electricdruid.net (Tom Wiltshire)
Date: Tue, 11 Aug 2026 12:41:19 +0100
Subject: [sdiy] AI code generation
In-Reply-To: <6184d6b2-741d-43f6-be0e-1f0a0d11402e@go2.pl>
References: <A4F5D2AB-4034-4882-97EB-B51B91025F6C@ericframpton.com>
 <CAKCSd-+uvHgTtMLvtU0gb2MZdHuOZ5Q4rhGSZQojd=qvy07hvQ@mail.gmail.com>
 <CAKCSd-LEpOY=TF2j_YmobT3+2VpgrZqH45T4emuQ4MJXKgrBjA@mail.gmail.com>
 <CAGn5V-_3_TcvdYEoNTWBQQkpT8cS37zW=9=_iWVA78YKXoJ9bQ@mail.gmail.com>
 <CAGn5V--Ps7F5Y-tRdVxGr_FvQbzB2uA9Dij+7YMuCEdSk9DbDw@mail.gmail.com>
 <2B1387F0-A895-40C7-9AB6-F1F6886CF0B6@ericframpton.com>
 <CAGn5V--oFvf9562HTx6W-9t3tycnDhGxpHRs-kcgYxsKbdTAMw@mail.gmail.com>
 <3532F602-8DFF-4639-A8EF-1277287FADEF@ericframpton.com>
 <KL1PR02MB6663DFFD10CE307F181C6281B3CC2@KL1PR02MB6663.apcprd02.prod.outlook.com>
 <AE3FBF0C-761B-4FE8-9CDC-AAB359532D02@adambaby.com>
 <CA+R=RzC6xcCmWqFg3ysn6+136ZjvZOYOzTYj5mQFvvFrZUrSPg@mail.gmail.com>
 <KL1PR02MB66639E54C9044DA21715BE3DB3CC2@KL1PR02MB6663.apcprd02.prod.outlook.com>
 <CAGn5V-9MOELKfo2rD63qXvyRf8NTF=BtzBi1UD2AR59EypDnog@mail.gmail.com>
 <0a578bf0-1403-4f76-8dea-fa42d54f70b1@musictechnologiesgroup.com>
 <6184d6b2-741d-43f6-be0e-1f0a0d11402e@go2.pl>
Message-ID: <DDA47D3C-C490-41B2-A7FB-8F2A54F72690@electricdruid.net>

Yes, exactly this. It's very easy to "turn up the speed" a bit for the communications with the voices while keeping the basic MIDI protocol or something very similar to it. You can have "external MIDI" coming in at 31.25Kbaud and "Internal MIDI" going to voices at a few hundred Kbaud with no problems at all. Keeping the two things the same/similar makes merging and passing the external messages along very simple.

> On 11 Aug 2026, at 12:27, Roman Sowa via Synth-diy <synth-diy at synth-diy.org> wrote:
> 
> In most cases I haven't dig down so much to analyze the transmission, it was rarely the problem anyway, and first time I saw it was when servicing Polyevolver keyboard. I was really surprised that all controls and voice assignment is done with plain MIDI messages, they were possibly faster than MIDI, but I can't remember correctly.
> 
> This is possibly the easiest and pretty common when you have MIDI input in a synth.
> 
> To mention my long time ongoing project, I did exactly the same. MIDI in from external world and MIDI IN from the panel. Main reason is that I can simply merge those 2 and throw at CV/voice control without caring if it came from external controller or its own panel. One set of procedures for all.
> 
> Roman
> 
> W dniu 2026-08-08 o 16:57, grant musictechnologiesgroup.com pisze:
>> I love that the panel MCU is a MIDI controller for the rest. Is this a
>> pretty common technique? Reminds me of some laptop keyboards and/or
>> trackpads that are USB HID devices. I think I've seen this before.
>> Perhaps Korg.
>> On 8/7/2026 4:31 PM, cheater cheater via Synth-diy wrote:
>>> Someone's been reverse engineering the Roland TR-6S using Claude and Ghidra:
>>> 
>>> https://averywagar.com/post/tr6s-part1/
>>> 
>>> I thought people in this thread might be interested
>>> 
>>> On Mon, Jul 27, 2026 at 11:33?AM Sean Ellis via Synth-diy
>>> <synth-diy at synth-diy.org> wrote:
>>>> 
>>>> For this project I've asked it to do any work in Arduino language and add comments on every line. Fantastic way to learn, not just to hand it off.
>>>> 
>>>> ________________________________
>>>> From: Synth-diy <synth-diy-bounces at synth-diy.org> on behalf of francesco mulassano via Synth-diy <synth-diy at synth-diy.org>
>>>> Sent: Monday, 27 July 2026 10:08 AM
>>>> To: Adam (synthDIY) <synthdiy at adambaby.com>
>>>> Cc: SDIY <synth-diy at synth-diy.org>
>>>> Subject: Re: [sdiy] AI code generation
>>>> 
>>>> 
>>>> No, be careful.
>>>> 
>>>> You need to know what you're doing, otherwise you'll never end up with something that's actually production-ready.
>>>> 
>>>> Think of AI as a junior developer who writes code better and faster than you do, but who doesn't know what to do without your guidance. When it gets stuck or goes down the wrong path, you have to steer it in the right direction. And if you don't know how to solve the problem yourself... you're stuck too.
>>>> 
>>>> 
>>>> Il giorno lun 27 lug 2026 alle ore 09:57 Adam (synthDIY) <synthdiy at adambaby.com> ha scritto:
>>>> 
>>>> 
>>>> 
>>>> On 27 Jul 2026, at 17:41, Sean Ellis via Synth-diy <synth-diy at synth-diy.org> wrote:
>>>> 
>>>> TBH, quite scary how knowledge is pretty useless now as long as you have access to LLMs.
>>>> 
>>>> 
>>>> 
>>>> 
>>>> Ah HA! That's EXACTLY what "they" want you to think.....
>>>> 
>>>> ;- )
>>>> A
>>>> ________________________________________________________
>>>> This is the Synth-diy mailing list
>>>> Submit email to: Synth-diy at synth-diy.org
>>>> View archive at: https://synth-diy.org/pipermail/synth-diy/
>>>> Check your settings at: https://synth-diy.org/mailman/listinfo/synth-diy
>>>> Selling or trading? Use marketplace at synth-diy.org
>>>> 
>>>> ________________________________________________________
>>>> This is the Synth-diy mailing list
>>>> Submit email to: Synth-diy at synth-diy.org
>>>> View archive at: https://synth-diy.org/pipermail/synth-diy/
>>>> Check your settings at: https://synth-diy.org/mailman/listinfo/synth-diy
>>>> Selling or trading? Use marketplace at synth-diy.org
>>> ________________________________________________________
>>> This is the Synth-diy mailing list
>>> Submit email to: Synth-diy at synth-diy.org
>>> View archive at: https://synth-diy.org/pipermail/synth-diy/
>>> Check your settings at: https://synth-diy.org/mailman/listinfo/synth-diy
>>> Selling or trading? Use marketplace at synth-diy.org
>> ________________________________________________________
>> This is the Synth-diy mailing list
>> Submit email to: Synth-diy at synth-diy.org
>> View archive at: https://synth-diy.org/pipermail/synth-diy/
>> Check your settings at: https://synth-diy.org/mailman/listinfo/synth-diy
>> Selling or trading? Use marketplace at synth-diy.org
> ________________________________________________________
> This is the Synth-diy mailing list
> Submit email to: Synth-diy at synth-diy.org
> View archive at: https://synth-diy.org/pipermail/synth-diy/
> Check your settings at: https://synth-diy.org/mailman/listinfo/synth-diy
> Selling or trading? Use marketplace at synth-diy.org



From cheater00social at gmail.com  Tue Aug 11 13:46:25 2026
From: cheater00social at gmail.com (cheater cheater)
Date: Tue, 11 Aug 2026 13:46:25 +0200
Subject: [sdiy] AI code generation
In-Reply-To: <6184d6b2-741d-43f6-be0e-1f0a0d11402e@go2.pl>
References: <A4F5D2AB-4034-4882-97EB-B51B91025F6C@ericframpton.com>
 <CAKCSd-+uvHgTtMLvtU0gb2MZdHuOZ5Q4rhGSZQojd=qvy07hvQ@mail.gmail.com>
 <CAKCSd-LEpOY=TF2j_YmobT3+2VpgrZqH45T4emuQ4MJXKgrBjA@mail.gmail.com>
 <CAGn5V-_3_TcvdYEoNTWBQQkpT8cS37zW=9=_iWVA78YKXoJ9bQ@mail.gmail.com>
 <CAGn5V--Ps7F5Y-tRdVxGr_FvQbzB2uA9Dij+7YMuCEdSk9DbDw@mail.gmail.com>
 <2B1387F0-A895-40C7-9AB6-F1F6886CF0B6@ericframpton.com>
 <CAGn5V--oFvf9562HTx6W-9t3tycnDhGxpHRs-kcgYxsKbdTAMw@mail.gmail.com>
 <3532F602-8DFF-4639-A8EF-1277287FADEF@ericframpton.com>
 <KL1PR02MB6663DFFD10CE307F181C6281B3CC2@KL1PR02MB6663.apcprd02.prod.outlook.com>
 <AE3FBF0C-761B-4FE8-9CDC-AAB359532D02@adambaby.com>
 <CA+R=RzC6xcCmWqFg3ysn6+136ZjvZOYOzTYj5mQFvvFrZUrSPg@mail.gmail.com>
 <KL1PR02MB66639E54C9044DA21715BE3DB3CC2@KL1PR02MB6663.apcprd02.prod.outlook.com>
 <CAGn5V-9MOELKfo2rD63qXvyRf8NTF=BtzBi1UD2AR59EypDnog@mail.gmail.com>
 <0a578bf0-1403-4f76-8dea-fa42d54f70b1@musictechnologiesgroup.com>
 <6184d6b2-741d-43f6-be0e-1f0a0d11402e@go2.pl>
Message-ID: <CAGn5V-9feCsdoOQwJQF8XcaJAONoac+94QE5gwRX6frkDxgEjg@mail.gmail.com>

It's actually really revealing of how synths work, I had no idea about
this but it makes perfect sense. I always thought that direct control
from the front panel would have higher resolution, less lag, etc.

>From what I'm reading here, maybe less lag, but probably not higher resolution.


On Tue, Aug 11, 2026 at 1:34?PM Roman Sowa via Synth-diy
<synth-diy at synth-diy.org> wrote:
>
> In most cases I haven't dig down so much to analyze the transmission, it
> was rarely the problem anyway, and first time I saw it was when
> servicing Polyevolver keyboard. I was really surprised that all controls
> and voice assignment is done with plain MIDI messages, they were
> possibly faster than MIDI, but I can't remember correctly.
>
> This is possibly the easiest and pretty common when you have MIDI input
> in a synth.
>
> To mention my long time ongoing project, I did exactly the same. MIDI in
> from external world and MIDI IN from the panel. Main reason is that I
> can simply merge those 2 and throw at CV/voice control without caring if
> it came from external controller or its own panel. One set of procedures
> for all.
>
> Roman
>
> W dniu 2026-08-08 o 16:57, grant musictechnologiesgroup.com pisze:
> > I love that the panel MCU is a MIDI controller for the rest. Is this a
> > pretty common technique? Reminds me of some laptop keyboards and/or
> > trackpads that are USB HID devices. I think I've seen this before.
> > Perhaps Korg.
> >
> > On 8/7/2026 4:31 PM, cheater cheater via Synth-diy wrote:
> >> Someone's been reverse engineering the Roland TR-6S using Claude and Ghidra:
> >>
> >> https://averywagar.com/post/tr6s-part1/
> >>
> >> I thought people in this thread might be interested
> >>
> >> On Mon, Jul 27, 2026 at 11:33?AM Sean Ellis via Synth-diy
> >> <synth-diy at synth-diy.org> wrote:
> >>>
> >>> For this project I've asked it to do any work in Arduino language and add comments on every line. Fantastic way to learn, not just to hand it off.
> >>>
> >>> ________________________________
> >>> From: Synth-diy <synth-diy-bounces at synth-diy.org> on behalf of francesco mulassano via Synth-diy <synth-diy at synth-diy.org>
> >>> Sent: Monday, 27 July 2026 10:08 AM
> >>> To: Adam (synthDIY) <synthdiy at adambaby.com>
> >>> Cc: SDIY <synth-diy at synth-diy.org>
> >>> Subject: Re: [sdiy] AI code generation
> >>>
> >>>
> >>> No, be careful.
> >>>
> >>> You need to know what you're doing, otherwise you'll never end up with something that's actually production-ready.
> >>>
> >>> Think of AI as a junior developer who writes code better and faster than you do, but who doesn't know what to do without your guidance. When it gets stuck or goes down the wrong path, you have to steer it in the right direction. And if you don't know how to solve the problem yourself... you're stuck too.
> >>>
> >>>
> >>> Il giorno lun 27 lug 2026 alle ore 09:57 Adam (synthDIY) <synthdiy at adambaby.com> ha scritto:
> >>>
> >>>
> >>>
> >>> On 27 Jul 2026, at 17:41, Sean Ellis via Synth-diy <synth-diy at synth-diy.org> wrote:
> >>>
> >>> TBH, quite scary how knowledge is pretty useless now as long as you have access to LLMs.
> >>>
> >>>
> >>>
> >>>
> >>> Ah HA! That's EXACTLY what "they" want you to think.....
> >>>
> >>> ;- )
> >>> A
> >>> ________________________________________________________
> >>> This is the Synth-diy mailing list
> >>> Submit email to: Synth-diy at synth-diy.org
> >>> View archive at: https://synth-diy.org/pipermail/synth-diy/
> >>> Check your settings at: https://synth-diy.org/mailman/listinfo/synth-diy
> >>> Selling or trading? Use marketplace at synth-diy.org
> >>>
> >>> ________________________________________________________
> >>> This is the Synth-diy mailing list
> >>> Submit email to: Synth-diy at synth-diy.org
> >>> View archive at: https://synth-diy.org/pipermail/synth-diy/
> >>> Check your settings at: https://synth-diy.org/mailman/listinfo/synth-diy
> >>> Selling or trading? Use marketplace at synth-diy.org
> >> ________________________________________________________
> >> This is the Synth-diy mailing list
> >> Submit email to: Synth-diy at synth-diy.org
> >> View archive at: https://synth-diy.org/pipermail/synth-diy/
> >> Check your settings at: https://synth-diy.org/mailman/listinfo/synth-diy
> >> Selling or trading? Use marketplace at synth-diy.org
> >
> >
> > ________________________________________________________
> > This is the Synth-diy mailing list
> > Submit email to: Synth-diy at synth-diy.org
> > View archive at: https://synth-diy.org/pipermail/synth-diy/
> > Check your settings at: https://synth-diy.org/mailman/listinfo/synth-diy
> > Selling or trading? Use marketplace at synth-diy.org
> ________________________________________________________
> This is the Synth-diy mailing list
> Submit email to: Synth-diy at synth-diy.org
> View archive at: https://synth-diy.org/pipermail/synth-diy/
> Check your settings at: https://synth-diy.org/mailman/listinfo/synth-diy
> Selling or trading? Use marketplace at synth-diy.org


From drheqx at gmail.com  Tue Aug 11 14:20:27 2026
From: drheqx at gmail.com (drheqx)
Date: Tue, 11 Aug 2026 08:20:27 -0400
Subject: [sdiy] AI code generation
In-Reply-To: <DDA47D3C-C490-41B2-A7FB-8F2A54F72690@electricdruid.net>
References: <A4F5D2AB-4034-4882-97EB-B51B91025F6C@ericframpton.com>
 <CAKCSd-+uvHgTtMLvtU0gb2MZdHuOZ5Q4rhGSZQojd=qvy07hvQ@mail.gmail.com>
 <CAKCSd-LEpOY=TF2j_YmobT3+2VpgrZqH45T4emuQ4MJXKgrBjA@mail.gmail.com>
 <CAGn5V-_3_TcvdYEoNTWBQQkpT8cS37zW=9=_iWVA78YKXoJ9bQ@mail.gmail.com>
 <CAGn5V--Ps7F5Y-tRdVxGr_FvQbzB2uA9Dij+7YMuCEdSk9DbDw@mail.gmail.com>
 <2B1387F0-A895-40C7-9AB6-F1F6886CF0B6@ericframpton.com>
 <CAGn5V--oFvf9562HTx6W-9t3tycnDhGxpHRs-kcgYxsKbdTAMw@mail.gmail.com>
 <3532F602-8DFF-4639-A8EF-1277287FADEF@ericframpton.com>
 <KL1PR02MB6663DFFD10CE307F181C6281B3CC2@KL1PR02MB6663.apcprd02.prod.outlook.com>
 <AE3FBF0C-761B-4FE8-9CDC-AAB359532D02@adambaby.com>
 <CA+R=RzC6xcCmWqFg3ysn6+136ZjvZOYOzTYj5mQFvvFrZUrSPg@mail.gmail.com>
 <KL1PR02MB66639E54C9044DA21715BE3DB3CC2@KL1PR02MB6663.apcprd02.prod.outlook.com>
 <CAGn5V-9MOELKfo2rD63qXvyRf8NTF=BtzBi1UD2AR59EypDnog@mail.gmail.com>
 <0a578bf0-1403-4f76-8dea-fa42d54f70b1@musictechnologiesgroup.com>
 <6184d6b2-741d-43f6-be0e-1f0a0d11402e@go2.pl>
 <DDA47D3C-C490-41B2-A7FB-8F2A54F72690@electricdruid.net>
Message-ID: <CAOA8kbXFud3+n3+RTKG0GNzfDpeW=xrVuj7SJa-2jzu-P-aXng@mail.gmail.com>

I have a degree in computer science, and I'm smart enough to know that I
can't write GUI apps in 30 seconds. Chat GPT gave me a compiled python
executable in under a minute with embedded demo data to illustrate future
functionality. In the mean time I've got the head EE ,who is ten years
older than me working out complex algorithms for a big FPGA using Claude.
He uses Gemini for the easy stuff. He's kicking ass!! I love it!! We're
saving so much time and money, it's astonishing.

On Tue, Aug 11, 2026 at 7:47?AM Tom Wiltshire <tom at electricdruid.net> wrote:

> Yes, exactly this. It's very easy to "turn up the speed" a bit for the
> communications with the voices while keeping the basic MIDI protocol or
> something very similar to it. You can have "external MIDI" coming in at
> 31.25Kbaud and "Internal MIDI" going to voices at a few hundred Kbaud with
> no problems at all. Keeping the two things the same/similar makes merging
> and passing the external messages along very simple.
>
> > On 11 Aug 2026, at 12:27, Roman Sowa via Synth-diy <
> synth-diy at synth-diy.org> wrote:
> >
> > In most cases I haven't dig down so much to analyze the transmission, it
> was rarely the problem anyway, and first time I saw it was when servicing
> Polyevolver keyboard. I was really surprised that all controls and voice
> assignment is done with plain MIDI messages, they were possibly faster than
> MIDI, but I can't remember correctly.
> >
> > This is possibly the easiest and pretty common when you have MIDI input
> in a synth.
> >
> > To mention my long time ongoing project, I did exactly the same. MIDI in
> from external world and MIDI IN from the panel. Main reason is that I can
> simply merge those 2 and throw at CV/voice control without caring if it
> came from external controller or its own panel. One set of procedures for
> all.
> >
> > Roman
> >
> > W dniu 2026-08-08 o 16:57, grant musictechnologiesgroup.com pisze:
> >> I love that the panel MCU is a MIDI controller for the rest. Is this a
> >> pretty common technique? Reminds me of some laptop keyboards and/or
> >> trackpads that are USB HID devices. I think I've seen this before.
> >> Perhaps Korg.
> >> On 8/7/2026 4:31 PM, cheater cheater via Synth-diy wrote:
> >>> Someone's been reverse engineering the Roland TR-6S using Claude and
> Ghidra:
> >>>
> >>> https://averywagar.com/post/tr6s-part1/
> >>>
> >>> I thought people in this thread might be interested
> >>>
> >>> On Mon, Jul 27, 2026 at 11:33?AM Sean Ellis via Synth-diy
> >>> <synth-diy at synth-diy.org> wrote:
> >>>>
> >>>> For this project I've asked it to do any work in Arduino language and
> add comments on every line. Fantastic way to learn, not just to hand it off.
> >>>>
> >>>> ________________________________
> >>>> From: Synth-diy <synth-diy-bounces at synth-diy.org> on behalf of
> francesco mulassano via Synth-diy <synth-diy at synth-diy.org>
> >>>> Sent: Monday, 27 July 2026 10:08 AM
> >>>> To: Adam (synthDIY) <synthdiy at adambaby.com>
> >>>> Cc: SDIY <synth-diy at synth-diy.org>
> >>>> Subject: Re: [sdiy] AI code generation
> >>>>
> >>>>
> >>>> No, be careful.
> >>>>
> >>>> You need to know what you're doing, otherwise you'll never end up
> with something that's actually production-ready.
> >>>>
> >>>> Think of AI as a junior developer who writes code better and faster
> than you do, but who doesn't know what to do without your guidance. When it
> gets stuck or goes down the wrong path, you have to steer it in the right
> direction. And if you don't know how to solve the problem yourself...
> you're stuck too.
> >>>>
> >>>>
> >>>> Il giorno lun 27 lug 2026 alle ore 09:57 Adam (synthDIY) <
> synthdiy at adambaby.com> ha scritto:
> >>>>
> >>>>
> >>>>
> >>>> On 27 Jul 2026, at 17:41, Sean Ellis via Synth-diy <
> synth-diy at synth-diy.org> wrote:
> >>>>
> >>>> TBH, quite scary how knowledge is pretty useless now as long as you
> have access to LLMs.
> >>>>
> >>>>
> >>>>
> >>>>
> >>>> Ah HA! That's EXACTLY what "they" want you to think.....
> >>>>
> >>>> ;- )
> >>>> A
> >>>> ________________________________________________________
> >>>> This is the Synth-diy mailing list
> >>>> Submit email to: Synth-diy at synth-diy.org
> >>>> View archive at: https://synth-diy.org/pipermail/synth-diy/
> >>>> Check your settings at:
> https://synth-diy.org/mailman/listinfo/synth-diy
> >>>> Selling or trading? Use marketplace at synth-diy.org
> >>>>
> >>>> ________________________________________________________
> >>>> This is the Synth-diy mailing list
> >>>> Submit email to: Synth-diy at synth-diy.org
> >>>> View archive at: https://synth-diy.org/pipermail/synth-diy/
> >>>> Check your settings at:
> https://synth-diy.org/mailman/listinfo/synth-diy
> >>>> Selling or trading? Use marketplace at synth-diy.org
> >>> ________________________________________________________
> >>> This is the Synth-diy mailing list
> >>> Submit email to: Synth-diy at synth-diy.org
> >>> View archive at: https://synth-diy.org/pipermail/synth-diy/
> >>> Check your settings at:
> https://synth-diy.org/mailman/listinfo/synth-diy
> >>> Selling or trading? Use marketplace at synth-diy.org
> >> ________________________________________________________
> >> This is the Synth-diy mailing list
> >> Submit email to: Synth-diy at synth-diy.org
> >> View archive at: https://synth-diy.org/pipermail/synth-diy/
> >> Check your settings at:
> https://synth-diy.org/mailman/listinfo/synth-diy
> >> Selling or trading? Use marketplace at synth-diy.org
> > ________________________________________________________
> > This is the Synth-diy mailing list
> > Submit email to: Synth-diy at synth-diy.org
> > View archive at: https://synth-diy.org/pipermail/synth-diy/
> > Check your settings at: https://synth-diy.org/mailman/listinfo/synth-diy
> > Selling or trading? Use marketplace at synth-diy.org
>
>
> ________________________________________________________
> This is the Synth-diy mailing list
> Submit email to: Synth-diy at synth-diy.org
> View archive at: https://synth-diy.org/pipermail/synth-diy/
> Check your settings at: https://synth-diy.org/mailman/listinfo/synth-diy
> Selling or trading? Use marketplace at synth-diy.org
>
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