Vintage Simmons Drums (UK) Users Group

> Speaking of the Claptrap,
>
> I could use the schematics if someone has them ?
>
> WT

----- Original Message -----
From: <chris@...>
To: <Simmons_Drums@yahoogroups.com>
Sent: Saturday, December 14, 2013 4:37 PM
Subject: Re: [Simmons Drums] Musicaid Claptrap schematics


> On 13 December 2013 at 23:03 WT <waveterm@...> wrote:
>> Speaking of the Claptrap,
>>
>> I could use the schematics if someone has them ?
>>
>> WT
>
> I have a schematic, although it lacks enough information to identify some
> of the
> IC's. I was planning on cross referencing it with the internals of my Clap
> Trap
> to try and produce a more useful schematic.
>
> Chris
>
>
> ------------------------------------
>
> Yahoo Groups Links
>
>
>

> Cool !
>
> Can you scan it and upload it ?
>
> WT
>

----- Original Message -----
From: "Chris Wareham" <chris@...>
To: <Simmons_Drums@yahoogroups.com>
Sent: Sunday, December 15, 2013 10:30 PM
Subject: Re: [Simmons Drums] Musicaid Claptrap schematics


> WT said on 15/12/13 15:22:
>> Cool !
>>
>> Can you scan it and upload it ?
>>
>> WT
>>
>
> Hi!
>
> I've uploaded the schematic to the existing "Analog Claptrap" directory
> in the files section of the Yahoo group. I'll quote below the
> description that I added to the file:
>
> "Simmons Analog Clap Trap schematic. There is no attribution or
> copyright on the schematic. I assume this was distributed by Simmons as
> an aid to service engineers, and is therefore freely distributable."
>
> It's a 300 dpi scan, so should be suitable for printing on A4 sized paper.
>
> Cheers,
>
> Chris

Thanks !

WT

----- Original Message -----

From: Chris Wareham

To: Simmons_Drums@yahoogroups.com

Sent: Monday, December 16, 2013 4:30 AM

Subject: Re: [Simmons Drums] Musicaid Claptrap schematics

 

WT said on 15/12/13 15:22:
> Cool !
>
> Can you scan it and upload it ?
>
> WT
>

Hi!

I've uploaded the schematic to the existing "Analog Claptrap" directory
in the files section of the Yahoo group. I'll quote below the
description that I added to the file:

"Simmons Analog Clap Trap schematic. There is no attribution or
copyright on the schematic. I assume this was distributed by Simmons as
an aid to service engineers, and is therefore freely distributable."

It's a 300 dpi scan, so should be suitable for printing on A4 sized paper.

Cheers,

Chris

> This is the schematics of the Mark 2 (analogue Simmons ClapTrap), the
> humaniser is already built in. It was a great idea to use the AC frequency
> from the PSU to modulate the VCO. A free LFO! This is the Simmons spirit!
> Also bad, that the LM566 (VCO) is so expensive these days. Back in the days,
> you could buy it for a few cents. Now they want 15 Euro or more.
>

>
>
> On 16 December 2013 at 03:13 Michael Buchner <buchnerelectronics@...>
> wrote:
>> This is the schematics of the Mark 2 (analogue Simmons ClapTrap), the
>> humaniser is already built in. It was a great idea to use the AC frequency
>> from the PSU to modulate the VCO. A free LFO! This is the Simmons spirit!
>> Also bad, that the LM566 (VCO) is so expensive these days. Back in the days,
>> you could buy it for a few cents. Now they want 15 Euro or more.
>
> There's an interesting thread on the Electro Music forum that suggests the
> NTE994M as an alternative to the LM566:
>
> http://electro-music.com/forum/topic-12642.html
>
> It also mentions an interesting drum voice that can be built around those chips.
> Something for the Christmas break perhaps ...
>
> Chris
>
>
> ------------------------------------
>
> Yahoo Groups Links
>
>
>

> I could use the MK1 schematics :)
>
> WT

Is that one that looks like an old grey keyboard switch ?

> Is that one that looks like an old grey keyboard switch ?

----- Original Message -----

From: Dennis Matana

To: Simmons_Drums@yahoogroups.com

Sent: Monday, December 16, 2013 5:31 PM

Subject: Re: [Simmons Drums] Musicaid Claptrap schematics

 

15 euro for an LM566? http://www.futurlec.com/Linear/LM566CNpr.shtml $ 1,25 a piece  (Y)

 

http://soundcloud.com/wifi

www.facebook.com/matanateknik

 

                           

On Monday, December 16, 2013 4:13 AM, Michael Buchner <buchnerelectronics@...> wrote:

 



This is the schematics of the Mark 2 (analogue Simmons ClapTrap), the humaniser is already built in. It was a great idea to use the AC frequency from the PSU to modulate the VCO. A free LFO! This is the Simmons spirit!

Also bad, that the LM566 (VCO) is so expensive these days. Back in the days, you could buy it for a few cents. Now they want 15 Euro or more.

 

 

----- Original Message -----

From: Chris Wareham

To: Simmons_Drums@yahoogroups.com

Sent: Monday, December 16, 2013 4:30 AM

Subject: Re: [Simmons Drums] Musicaid Claptrap schematics

 

WT said on 15/12/13 15:22:
> Cool !
>
> Can you scan it and upload it ?
>
> WT
>

Hi!

I've uploaded the schematic to the existing "Analog Claptrap" directory
in the files section of the Yahoo group. I'll quote below the
description that I added to the file:

"Simmons Analog Clap Trap schematic. There is no attribution or
copyright on the schematic. I assume this was distributed by Simmons as
an aid to service engineers, and is therefore freely distributable."

It's a 300 dpi scan, so should be suitable for printing on A4 sized paper.

Cheers,

Chris

More pics on a French Simmons Facebook page:

https://www.facebook.com/vintagesimmonsdrum?hc_location=stream