Nevertheless those, who like extreme experiences, can omit all added elements and use the same PCB (with few extra jumpers) to build 100% authentic Polivoks VCA. The Polivoks VCA has distinctive architecture – two differential opamp based VCAs in series each for LFO and ADSR control signal amplitude independently. Control voltage to attenuation behavior of this VCA is nonlinear and not logarithmic, it is kept authentic to the response of ПОЛИВОКС. As most Erica Synths DIY kits, Polivoks VCA kit as standard includes original Russian ICs K118UD1B. Check the demo below! If interested order in the SHOP!