'Mark' dual Rubber Fetish

Prophecysound dual Rubber Fetish envelope filter originally built for Mark Karan

Channel one has a choice of high-pass or low-pass and has the following controls:

• gain (signal volume through filter section)
• sensitivity (response to playing dynamics)
• peak / Q
• range
• drive up/down
• fuzz
• effect / clean signal blend

Channel two has a choice of band-pass or low-pass, and has all the controls of channel one plus:

• frequency tune (max setting -> normal, turn down to tune resonant peak down through frequencies - also increases gain (side effect) for some nice sounds)
• attack / decay (for 'hard' envelope sounds or more subtle, slower attack slower decay sounds)

Two footswitches - bypass and channel select. LEDs indicate which channel is selected, turn off to indicate effect is bypassed (true-bypass).
Runs from regulated 9VDC supply - internal circuitry used to create +/-9VDC.