Erica Synths DIY Polivoks VCA II

The module is freshly built and fully tested.
It comes with power cable and screws. The panel is made from PCB material.

Assembled on the base of opensource build project by Erica Synths. 

If your country is not available for shipping, please mail me

Features

• Single or Dual VCA mode
• CV level adjustment for each VCA
• Summed audio output (lower signal gain, though)
• Skiff-friendly design
   

The Polivoks VCA has distinctive architecture – two differential opamp (Russian ICs K118UD1B) based VCAs in series, each for LFO and ADSR control over signal amplitude independently. Control voltage to attenuation behavior of this VCA is nonlinear and not logarithmic. It is kept authentic to the response of original Polivoks. Most parts of the VCA have been improved to achieve compatibility with eurorack signal and CV standards, higher dynamic range, better reliability, lower noise, accept higher signal levels, keep consistent behaviour, self-tuning of two internal offsets and higher linearity, but the heart of it is kept the same. We also redesigned audio signal path, so that you can use it as two independent VCAs or two VCAs in series as in original Polivoks, plus summed signal output.

Technical specifications:

VCA gain1,2CV level-10V…+10VAttenuation@0V CV80dBPanel width8HPModule depth35mmPower consumption24mA@+12V, 18mA@-12V