[sdiy] analog drum machine parts

[Ray Wilson]

You can use what is called a twin T filter that is near oscillation. When 
you apply a little pulse to the input the filter rings for a while and 
sounds like an electronic drum.

Here are some links.

http://www.paia.com/syndrum.htm
http://www.cgs.synth.net/modules/cgs18_drum.html
http://www.radio-electronics.com/info/circuits/rc_notch_filter/twin_t_notch_filter.php

Cheers

Ray

  ----- Original Message ----- 
  From: woody 
  To: synth-diy at dropmix.xs4all.nl 
  Sent: Wednesday, June 08, 2005 12:32 AM
  Subject: [sdiy] analog drum machine parts


  Hey,
  I've got an old fafisa organ with an analog drum box tack on the side
  Are they useful for parts for anyone doing that stuff?
  Beyond that are any of the parts for the organ useful?
  greg
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