HERETIC

Polivoks topology VCF with VCA, sub-oscillator and LP|BP Xfade

1.AUDIO INPUT-OUTPUT
Input expects 10Vpp audio signal

2. CUTOFF and CV
   CUT- manual cutoff control
   CUT CV - attenuverted control voltage input which is also connected to the RES, PASS cv input jacks and VCA with on/off button switch.

3.RESONANCE AND CV
RES knob - manual resonance control
RES jack - attenuverted control voltage input

4. SUB oscillator and octave switch
   SUB knob - mix in sub oscillator to audio input
   OCT button - switches beetween -1 or -2 octaves
   Sub oscillator circuit takes signal from audio input jack and converts it to a -1 or -2 octave square wave.

5. LP | BP xfade
   PASS knob - crossfade beetween Low pass and Band pass filter outputs
   PASS jack - attenuverted control voltage input

6. VCA AND DRIVE
   VCA - amplifier control voltage input
   DRIVE knob with CV input jack - adds overdrive effect

https://www.etsy.com/listing/4448220916/heretic-vcf