MATRIXSYNTH: Making an Analog Eurorack Guitar Synth with a 1970's Ultra-Fuzz Circuit

Monday, October 18, 2021

Making an Analog Eurorack Guitar Synth with a 1970's Ultra-Fuzz Circuit


video upload by Extralife

"I've been exploring some guitar synth sounds using the hard sync input on my VCO, but this has some issues with tracking stability and major noise problems. I solved this be re-building the classic Craig Anderton Ultra-Fuzz circuit from 'Electronics Projects for Musicians' in a eurorack format, which is a comparator-based fuzz that outputs a proper square wave rather than a clipped sinusoidal one. This provides much better tracking and dynamics and lets us get those classic screaming hard sync synth sounds out of any guitar.

Ultra-fuzz modernized schematic: https://drive.google.com/file/d/1FQu9...

Read Craig Anderton's post on updating schematics from EPFM: https://craiganderton.org/electronic-..."

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