[sdiy] Looking for schematics

Heitor Alves theatomlabspt at gmail.com
Thu Jan 22 01:17:15 CET 2009


Hi friends :o)

I've only got back today, from work...4 days in a row...

The db uses a CEM 3340 wich i believe only makes the VCO.

Regards :o)
  ----- Original Message ----- 
  From: harrybissell at wowway.com
  To: Dan Norris ; theatomlabspt at gmail.com ; synth-diy at dropmix.xs4all.nl
  Sent: Sunday, January 18, 2009 6:08 PM
  Subject: RE: [sdiy] Looking for schematics


  Looking at the photo I don't think the filter is there. If it does use the 
Curtis
  chips (CEM3320 ?) I can show how I did the 12db mod.

  H^) harry



  On Sun, 18 Jan 2009 02:25:08 -0800, Dan Norris wrote
  > >
  > > Hi Harry, and list
  > >
  > > I've uploaded a photo of the mainboard (analog circuit) and there are 
2
  > > possible places to be the diode/transistor ladder... but without the
  > > schematics i'm affraid of mess something... i'll keep on trying to 
find it,
  > > if i cant find it i'll leave the idea alone ;o)
  > >
  > > photo: www.atomlabs.biz/DSCN2497.JPG
  > >
  > > thanks for the help anyway, i've already made a .txt with harry's
  > > explanation on the mod :o)
  > >
  > > regards
  > >
  > > Heitor
  >
  > A couple reviews on Sonicstate mention that this unit uses Curtis chips 
for the oscillator and filter. Are they incorrect?
  >
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