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Vintage Simmons Drums (UK) Users Group

Index last updated: 2026-04-13 23:32 UTC

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Re: [Simmons Drums] Simmons 20-85 eprom expander card

2008-02-22 by Michael Buchner

Wow! I've heard about this card, but I never saw it before. If you need eproms, you can have a list and my sounds as mp3 first to get an idea. Then you can order the ones of your choice (or sample the mp3s into your Akai...;-). I have got a pretty big  collection of original simmons and many others, but: Not the original clap trap :-(.
For getting the mp3s and the list mail your real email address to buchnerelectronics@....
Regards
Michael

  ----- Original Message ----- 
  From: blacklodgeed 
  To: Simmons_Drums@yahoogroups.com 
  Sent: Friday, February 22, 2008 6:49 PM
  Subject: [Simmons Drums] Simmons 20-85 eprom expander card


  Hey everyone.
  I just uploaded some pictures of the Simmons 20-85 card. This is the daughter card that 
  allows the SDS 7 modules to access four different eproms. The different eproms are selected 
  using the resonance control - which kind of sucks because it means you lose that control, 
  but but being able to access the different eproms is awesome.
  I do have one question, though... There's a variable resistor on the card that I have no idea 
  what it does. Resonance control, perhaps? Any help would be greatly appreciated.
  Many Thanks.
  Ed



   

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