[sdiy] Dual/quad opamp bleed-through

[Oakley Sound]

 > Do any of these synths have unintentional oscillator sync problems?

Minimoog; no, in any of the three variants. But there is a belief that 
the power supply in the Mini is noisy enough so as to disrupt any soft 
syncing between the VCOs.

ARP 2600; no. But this is because all the VCOs, although sharing the 
same board, have completely separate power supply lines back to the 
power supply module. ARP must have known there was a potential problem 
to take the hassle of three extra Molex headers and associated wiring.

MS-20; yes. Soft sync is evident on many units I have seen. But only 
when you try to set the pitches very close to one another.

Tony

www.oakleysound.com