Extreme Distortion + Fuzz + Treble Boost PUBLIC

Extreme Distortion Circuit + Fuzz + Treble Boost

An extreme distortion circuit using op-amps for distortion, a hard-clipping array of Shchottky diodes for fuzz, and op-amps for a treble booster and 2-band active tone-controls. Op-amps chosen to provide clean boost to the input signal and tube-like distortion for the distorted/fuzzed signal, which are mixed separately by the user in the tone-control circuit. Controls Include: Master Drive, Clean Gain, Clean Level, Distortion Driver Gain, Distortion Drive, Distortion Stage Gain, Distortion Intensity, Treble Boost enable switch, Treble Boost control, Fuzz enable switch, Fuzz symmetry switches (two, with two settings each), Fuzz Depth control, Bass, Mid, Treble, and Volume. Range at or above 0 dBV is from 33 Hz to 6.3 kHz, with emphasis on mids. Suitable for 6/7-string guitar or 4-string bass, or 5-string bass with high C-string instead of low B-string. [Not recommended for 8-string guitars or 5/6-string bass with low B-string.] Maximum gain = +16.9 dBV (Vo/Vi = 7) @ 400 Hz with all controls at 50% and without the Treble Boost, or +54 dBV (Vo/Vi = 501) @ 1 kHz with all controls at 100% but without the Treble Boost. With Treble Boost enabled, and all controls at 100%, maximum gain = +69.7 dBV (Vo/Vi = 3059) @ 1 kHz. Caution! This is a very high-gain circuit with all controls at 100%, including Treble Boost control. Do not use the circuit at such an extreme except as a brief worst-case scenario during breadboard testing. Power-supply not shown. Requires a regulated dual-polarity DC supply providing +-9VDC or +-12VDC or +-15VDC at >= 60 mA of current. And while simulator verified, treat the circuit as experimental. Breadboard test before committing to a soldered build.