Archive of the former Yahoo!Groups mailing list: 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.