Passive CV mixer for CA3080 based VCA for Modular Synths

115

00:38:33

Verified on Breadboard 
Controls: Middle Left; Initial Level
                  Bottom  Left: External CV level

Description : Passive CV mixer plus simple voltage to current conversion via PNP transistor. The current mirror at bottom right represents the Iabc input on the CA3080 OTA. Should work with LM13600/13700 OTAs also.
Tested for +/-12 V system using 10V peak to peak control and signal voltages

published 3 years ago

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