OTA (Operational Transconductance Amplifier) VCA (Voltage Controlled Amplifier) - DIY

This is a dual VCA unit based on an LM13700 OTA for eurorack modular synthesizers. Each individual VCA section has an audio input, audio output, and CV input. Also, there are Gain and CV Amount potentiometers to adjust the desired amplification. This listing is only for PCB and Front Panel.

The front panel is also made out of PCB and screen printed by hand.