[sdiy] classic transistor VCO's

[harrybissell at wowway.com]

It would work... looks like a Korg clone.  You need to match the
NPN/PNP in the expos, maybe select the FETs as well. Its not
DC coupled so its no good for low frequencies, or modulation duties...

H^) harry




n Thu, 1 Jan 2009 00:23:07 +0000, Dan Snazelle wrote
> hey i found this in my files
> 
> maybe this will work out
> 
> anyone tried it???
> 
> http://www.aleph.co.jp/~takeda/radio/harvest/img/schem/DualTBVCO3a-schem.gif
> 
> or the original???
> 
> they look small!!
> 
> thanks
> 
> --------------------------------------------
> check out various dan music at:
> 
> http://www.myspace.com/lossnyc
> 
> http://www.soundclick.com/lossnyc.htm
> 
> http://www.indie911.com/dan-snazelle
> (or for techno) http://www.myspace.com/snazelle
> 
> ----------------------------------------
> > From: subjectivity at hotmail.com
> > To: synth-diy at dropmix.xs4all.nl
> > Date: Wed, 31 Dec 2008 20:45:26 +0000
> > Subject: [sdiy] classic transistor VCO's
> >
> >
> >
> > ok
> >
> > the recent topics have gotten me looking for small vco's or noisemakers
> >
> > i remembered the 303 had a transistor VCO but even with XOXBOX redrawn
schematics, the schematic is a bit confusing) (this could just be the layout
of the schematic)
> >
> > but there must be others.
> >
> > I know ems used transistor vcos at some point
> >
> > are there any others? the key here is small and not stable
> >
> > heck, it could even be some wildly unstable magazine vco.
> >
> > i am just wanting to get some small transistor circuits going ( a la ciat
lonbarde)
> >
> > anyway.....hope this topic isnt too similar
> >
> >
> > thanks
> >
> >
> >
> >
> > --------------------------------------------
> > check out various dan music at:
> >
> > http://www.myspace.com/lossnyc
> >
> >
> > http://www.soundclick.com/lossnyc.htm
> >
> >
> > http://www.indie911.com/dan-snazelle
> > (or for techno) http://www.myspace.com/snazelle
> >
> >
> >
> > _______________________________________________
> > Synth-diy mailing list
> > Synth-diy at dropmix.xs4all.nl
> > http://dropmix.xs4all.nl/mailman/listinfo/synth-diy
> 
> _______________________________________________
> Synth-diy mailing list
> Synth-diy at dropmix.xs4all.nl
> http://dropmix.xs4all.nl/mailman/listinfo/synth-diy


Harry Bissell & Nora Abdullah 4eva