Extreme Distortion Plus Fuzz PUBLIC

Extreme Distortion Plus Fuzz Circuit for Electric Guitar

Circuit provides extreme distortion from op-amps, plus fuzz from a hard-clipping diode array (employing Schottky diodes), along with 3-band active tone. Controls Include: Master Drive, Clean Gain, Clean Level, Distortion Gain, Distortion Drive, Distortion Stage Gain, Distortion Intensity, Fuzz enable switch, Fuzz symmetry switches (two, with 2 settings each), Fuzz Depth, Bass, Mid, Treble, and Volume. Range at or above 0 dBV is froom 34 Hz to 8 kHz. Suitable for 6/7/8-string guitar or 4/5/6-string bass. A high-gain circuit with controls set > 50%. Maximum gain = +28.8 dBV (Vo/Vi = 27.5) @ 1 kHz with all controls at 50%, or +66.8 dBV (Vo/Vi = 2188) with all controls at 100%. Do not use circuit with all controls kept at 100% except as a worst-case scenario during breadboard testing. The Treble control will cut 10 kHz from -2.4 dBV down to -14.2 dBV, or boost it to +3.5 dBV. The Bass control will cut 100 Hz from +17.8 dBV down to +12.4 dBV, or boost it to +23.7 dBV. Note that the Diode Array is part of the distortion circuitry, so the clean signal is unaffected by it, and the clean and distorted/fuzzed signals can be separately mixed by the user in the tone-control circuit. 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.