Vintage Simmons Drums (UK) Users Group

Ok, is your clone already working? I guess, not! You discuss about permissions, you should discuss where to get the replacements for BC 557, 2N 5172, LM 3086, 2N 5459 and so on. For all not to be into schematics so deep: These are the relevant electronic parts ;-.)).
B t w.: Dave Simmons cloned the original Moog ladder filter for his SDS3/4 Drum Synthesizers. May be he didn't know, because he cloned it from an ARP synthesizer :-))). So: If you want to produce a number under 10000, nobody will care, I think. If you want help, no problem. I have good detail photos and the REAL schematics of SDS3.
Cheers
Michael 
 

[Non-text portions of this message have been removed]