Vintage Simmons Drums (UK) Users Group

wow,
i just found this group. i have the sds-800 schematics at home, i'll 
upload them when i have the chance.
i've done loads of modifications to the 800:

-resonance
-waveform selection
-pulse width
-oscillator to filter fm
-second skin frequency control
-run generator to filter freq
-shorter min,longer max decays
-lower filter range
-negative filter envelopes

next is audio inputs to switch in with the noise.

it would be really easy to add cv and gate inputs to use as 4 
independent monosynths. i can upload the cem3394 datasheet as well 
as a schematic for adding all sorts of control inputs to the chip if 
anyone is interested.

Hello Gregory, I've tried to contact you from your website without any chance... would you answer me through this way....?

I also wanna do your modification on my sds800, as you wrote 8 years ago that you could provide the schematics, I'll be really happy if you could share it with me.

Thanks on advance
romain

--- In Simmons_Drums@yahoogroups.com, "gregory zifcak" <foleymachine@...> wrote:

>
> 
> wow,
> i just found this group. i have the sds-800 schematics at home, i'll 
> upload them when i have the chance.
> i've done loads of modifications to the 800:
> 
> -resonance
> -waveform selection
> -pulse width
> -oscillator to filter fm
> -second skin frequency control
> -run generator to filter freq
> -shorter min,longer max decays
> -lower filter range
> -negative filter envelopes
> 
> next is audio inputs to switch in with the noise.
> 
> it would be really easy to add cv and gate inputs to use as 4 
> independent monosynths. i can upload the cem3394 datasheet as well 
> as a schematic for adding all sorts of control inputs to the chip if 
> anyone is interested.
>