[sdiy] what opamp for "warmth"? (I know, I know...)

David G Dixon dixon at mail.ubc.ca
Wed Apr 5 20:32:36 CEST 2023

Whatever the VCA is in the Korg MS-20 really warms up the sound of that
synthesizer.  You can find the schematic on the internet.  I have something
redrawn by a fellow named Marjan Urekar that I looked at years ago.  It
involves two transistors.  It is evidently also the VCA used in the Roland
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