Dtech VCF has all buffered inputs with diode protection, diode protection on reversed power supply voltage, 1V/oct response. Designed by our friend, genius engineer and musician Edward Dtech, PCB by Girts, Erica Synths.

Skiff format Dtech VCF sound circuit uses the original Russian ICs K140UD12 found in Polivoks VCF, and has one of most advanced control features found in VCFs around, including resonance CV, filter curve and resonance slope adjustment and unique CV assign function. It's sound ranges from deep, bassy sounds to something even more extreme than famous Polivoks resonant screams.

Technical specifications:

Filter Mode	LP/BP
LPF	approx 12dB/oct @max slope setting, approx 6dB/oct @ min slope setting
BPF	6dB/oct; slope varies bandwidth (BPF lower end frequency)
Input signal level	10V ptp
CV signal level	10V ptp
Power supply	eurorack standard +-12V
Power consumption	62mA (+12V), 56mA (-12V)
Module width	14HP
Module depth	45mm

Erica Synths Dtech VCF on Modulargrid

See the build thread @ Muffwigglers