This is an analog filter based on the roland JP6 filter. It uses an OTA-JFET cell for each filter section. I added some modifications and a 'Vactrol' simulation. There is a dip switch on the back, please look up the manual to determine your best needs.
Features:
-LP12,LP24,BP12,HP24 modes
-internal vca
-internal Decay circuit based on the syncussion. Modified to act like a vactrol.