[sdiy] CS-80 VCO

Aaron Lanterman lanterma at ece.gatech.edu
Sat Apr 17 20:41:08 CEST 2010


On Apr 16, 2010, at 6:56 PM, Dave Manley wrote:

> I have a vague recollection of talking to Robert Rich at a bay area  AH meeting where he claimed the CS-80 vco triangle output had a glitch that was key to the characteristic sound of the synth.  One would presume it's this same glitch after waveshaping.  Paul Schreiber alluded to a custom CS-80 VCO in a posting the other day announcing the latest Robert Rich demos of MOTM stuff.  I wonder if Rich's CS-80 VCO is the Old Crow's implementation?  Not sure why it would matter, or where I'm going with this, but hey does there have to be a reason?

I'm guessing none of this is a coincidence. ;)

I know Paul has sold some of Old Crow's designs, the CS-80 filters and the GX-1 filters. Old Crow's CS-80 VCO recreation has that MOTM-ish look... but Paul has gotten out of the through-hole kit business. 

Perhaps Old Crow might be interested in making & selling boards of his CS-80 VCO adaptation, and or posting schematics and such... :)

- Aaron


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