[sdiy] ASM-1 ADSR

[Magnus Danielson]

Hi Jeffrey,
'
On 02/11/2012 11:46 AM, J.D. McEachin wrote:
> Does anyone remember who designed it? Gene Stopp, one of the
> Electronotes guys, or someone else?
>
> I'm wondering because, after all these years of taking a lot of crap
> about it from a good friend of mine, I've decided that I'm FINALLY going
> to finish my ASM-1. LOLZ. Or more accurately, I'm going to saw the PCB
> into 3 pieces, and build MOTM-format VCF, dual VCO, and dual ADSR/VCA
> modules. And I'd like to give credit where credit is due on the front
> panels.

Well, I simply asked Gene and got this reply:

Yes, that's my design, I based it on whatever chips I happened to have 
in my parts drawer at the time. I doubled up the attack analog switches 
since I had a spare and I wanted to reduce the ON resistance as much as 
possible for the fastest attack. In retrospect I should have used a 555 
timer as the A/D flip flop but oh well.

- Gene

So I hope we have settled your curiosity.

Cheers,
Magnus