Introducing The Harvestman Polivoks VCF

The mystery module (scroll) revealed.
Now in-stock and ready for shipment from Analogue Haven.
"The Harvestman is proud to present the first widely available modular release of the Polivoks filter circuit. The filter is made via a collaboration with the synth's original designer, Vladimir Kuzmin, and Shawn Cleary of Analogue Haven. The filter circuit is identical to the original design and uses the exact same schematic as the Polivoks synthesizer as well as new old stock Soviet integrated circuits (KR140UD1208 and KR140UD608, not Western "equivalents"). A signal mixer and bipolar CV multiplier were added in order to use the filter within the modular realm but no other additions are present. This helps to preserve the unique and unstable sound character without compromising signal flow authenticity.

First sold in the USSR in 1982, the Polivoks was the first voltage-controlled Soviet synthesizer. Boasting an impressive set of features comparable to Western designs, the synthesizer was noted for its extremely aggressive sound, particularly within the filter. Easy to overload, unstable at high Q values, and self-oscillating with a dirty pulse.



Specifications:
Made in cooperation with Vladimir Kuzmin
Manual and voltage-controlled cutoff frequency
Manual control of resonance
Bipolar CV input multiplier
2-input signal mixer (easily overdrives filter)
Low- and bandpass outputs
Original Soviet integrated circuits - no capacitors used in the design!
Panel size: 10HP"

Click here for more info. via Scott Sebastian Jaeger of The Harvestman as well as bbob.
For more info on the legendary russian synthesizer, the Polivoks, see these posts (be sure to scroll).