MOSFET Fuzz Circuit 6 PUBLIC

High-Gain MOSFET Fuzz Circuit 6

High-gain MOSFET fuzz circuit, design # 6. Uses one dual JFET-input op-amp for gain, and two dual enhancement-mode MOSFET ICs plus four Schottky diodes in a hard-clipping array for fuzz, with user selectable symmetry. There is also a modified 3-band Fender-style tone-stack. Controls Include: Input Attenuation, Input Gain, Drive, Fuzz enable switch, Fuzz Tone, Fuzz symmetry switches, Fuzz Depth, High Trim, Low Trim, Bass, Mid, Treble, Stack Sum, Output Gain, and Volume. Range above 0 dBV is from 6 Hz to > 26 kHz. Practical range is from 20 Hz to 20 kHz. Suitable for 6/7/8-string guitar of 4/5/6-string bass, with emphasis on highs when all controls are at 50%. Example gains are +22dBV (Vo/Vi = 12.2) @ 25Hz, +32.7dBV (Vo/Vi = 43.2) @ 100Hz, +32.5dBV (Vo/Vi = 42.2) @ 1kHz, +34.8dBV (Vo/Vi = 55) @ 10kHz through 20 kHz and above. Can be used for stomp-box or rack-mount projects. The battery can be replaced by a regulated single-polarity +9V DC supply providing >= 20 mA of current. And while simulator verified, treat the circuit as experimental. Breadboard test before committing to a soldered build.