LM13700 dual VCA

This one is a version of benjiaos VCA, which in turn if a version of juanito moores VCA. I added a bit here and left out a bit there. I hope you like it.

Cheap Dual VCA – Transistor based VCA

This more or less passive design is from Bummbummsteffen. He designed it for his drumrack and it works okay but using his words ‘Theres some distortion in the output. Furthermore the design doesn’t work with negative voltages.’ I built two of them on one protoboard and even built one more for the portable setup.

Vactrol VCA

This module was a long time in my Rack but is currently not part of my setup because of bleedthrough issues. I built a better version for my portable setup. A lot of testing regarding vactrols components were done. And the best combination for lowpassgates and vactrol-VCAs in my opinion are 5549 LDRs and diffuse […]