[sdiy] Moog 1125 sample and Hold

[Analogmonster]

Yes, it is possible that we had contact before. And I've seen your post on 
moogmusic.com.

As you might have seen I've cloned most filter types of the Moog Modulars 
plus coupler. The sound is really amazing, better than other filter 
implementations in my opinion.
I thought about building the JH FFB, but then decided to build a close clone 
of the Moog 914 bank. So I followed the original OpAmp free circuit with 
inductors, so the answer is yes, I built it with inductors.

A Minimoog clone is certainly a very interesting project, so congrats you 
managed it. If I will finish my System 55 Clone some day I have an Arp 2600 
on my wish list.

Cheers

Carsten

-----Ursprüngliche Nachricht----- 
From: Keith Winstanley
Sent: Wednesday, November 21, 2012 9:48 AM
To: Analogmonster
Cc: SDIY
Subject: Re: [sdiy] Moog 1125 sample and Hold

Hi Carsten, I think I may have spoken with you a few years ago? I have built 
a faithful 904A and was toying with the idea of cloning very early 901 
oscillators in euro format, still like the idea maybe a whole 3C in euro :) 
I have the adapted layouts for the 904A and the oscillators but its a big 
project and I'm up to my eyes in projects already. If anything I would like 
to build an authentic high pass and coupler to go with my 904A but again big 
projects I don't really need :)
My big success has been my minimoog.
On your 914 are those inductors or variable caps? I have a JH FFB I would 
like to build with inductors.

Cheers

Keith


On 21 Nov 2012, at 07:36, Analogmonster <carsten at analog-monster.de> wrote:

>
> Ah, ok, a brother in cloning :-)
>
> That's something different of course. I am currently cloning the Moog 
> System 55 and although I developed the Sample and Hold module mentioned 
> below the Moog version is also on my wish list, someday.
>
> Regards
>
> Carsten
> http://www.analog-monster.de/index_en.html
>
> -----Ursprüngliche Nachricht----- From: Keith Winstanley
> Sent: Tuesday, November 20, 2012 9:58 AM
> To: Analogmonster
> Cc: synth-diy at dropmix.xs4all.nl
> Subject: Re: [sdiy] Moog 1125 sample and Hold
>
> Hi Carsten, many thanks for your comments.
>
> I have most of the components in stock and I have a source for the SG3821 
> so parts are no problem. I do have a few sample and hold modules with 
> varying functionality but I wanted to clone the 1125 faithfully to plug 
> directly in to my cloned minimoog
>
> Cheers
>
> Keith
>
> On 20 Nov 2012, at 07:50, Analogmonster <carsten at analog-monster.de> wrote:
>
>> First question: Do you have the parts?
>>
>> I've seen some very obsolete components in the schematics. If you don't 
>> have or can't get them, you have to replace them by actual components or 
>> components which can be obtained more easily. Then you have to redraw the 
>> layout anyway.
>>
>> If it's just to get a sample and hold module, there are much easier to 
>> build circuits in the web, like http://www.analog-monster.de/suh_en.html 
>> or many others.
>>
>> Carsten
>>
>> -----Ursprüngliche Nachricht----- From: Keith Winstanley
>> Sent: Monday, November 19, 2012 12:19 PM
>> To: synth-diy at dropmix.xs4all.nl
>> Subject: [sdiy] Moog 1125 sample and Hold
>>
>> Has anyone got any hi res images of both sides of the PCB for this mini 
>> accessory
>> or is anyone prepared to take one apart to do this?
>> Never seen one for sale at a sensible price and I don't think it would be 
>> to hard to put one together.
>>
>> Cheers
>>
>> Keith
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