The VCOs are not special chips but discrete:
Q9/Q10/Q11 - C54 fed by constant current source IC37 (a TL072)/Q8.
It is a very simliar design as the MS series (MS10/20/50).
The sub oscillator is a simple JK flipflop (4027) - that's truly
digital ;-).
Interesting is that the VCA is discrete, too. Just a controlled
divider made up of two general purpose npn transistors.
Simple stuff is simple...
PolySix@yahoogroups.com wrote:
> Okay...So the vcf's in this thing are ssm 2044's and the eg's are ssm
> 2056's......Does anyone have a clue what the vco chips are?
> -Meathook
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