The Gristleizer Tabletop PCB

The Gristleizer Tabletop is an analog synthesizer effect unit for use with all types of instruments and signals.  

Based on the original effect designed by Roy Gwinn and popularized by Throbbing Gristle, this version 3 tabletop has an improved filter design with optional CV and expression pedal mods.

LINK TO PCB ASSEMBLY GUIDE

Features


Knobs:

Level - the overall output volume
Bias - in VCA mode, the amount of distortion; in VCF mode, the filter's center frequency
Freq - the frequency of the LFO
Depth - the intensity of the modulation

Switches:

Waveform - selects the shape of the modulation
VCA/VCF - selects between VCA and VCF modes
Bypass - true bypass

Jacks:

Input - accepts both low and line-level inputs - line-level instruments overdrive nicely.
Output - drives low level and most line level inputs