High-Gain Schottky Fuzz w. 2-Band Tone PUBLIC

High-Gain Schottky Fuzz with 2-Band James Tone Circuit

High-gain Schottky fuzz circuit with 2-band James type tone-controls. For guitar or bass. Controls Include: Input Level, Fuzz enable switch, Fuzz symmetry switches, Fuzz Depth, Drive, Bass, Center, Treble, Boost, and Volume. Frequency range between low and high -3 dBV corners is from 18 Hz to 20 kHz, and between low and high 0 dBV points is from 20 Hz to 18 kHz. Suitable for 6/7/8-string guitar and/or 4/5/6-string bass. Maximum gain = +34 dBV between 400 Hz and 1 kHz with all controls at 50%, or +76 dBV between 160 Hz and 1.6 kHz, with bandwidth extending from 10 Hz to 63 kHz. Hence the "high-gain" categorization. Power-supply not shown. Requires a regulated dual-polarity DC supply providing +-9VDC or +-12VDC or +-15VDC at >= 40 mA of current. Note: Higher supply voltage results in lower op-amp noise. With the Fuzz OFF, the circuit will function as a high-gain clean-boost at said gain levels. With Fuzz ON, maximum gain will be reduced by approximately -6 dBV regardless of control settings, and bandwidth will also be reduced. For switchable high-gain Fuzz while performing, use a quiet A/B switch with this and some other circuit giving less gain. Also, the Fuzz enable switch here is not a quiet switch. And while simulator verified, treat the circuit as experimental. Breadboard test it before committing to a soldered build.