Fuzz Maniac II Circuit PUBLIC

Fuzz Maniac II Circuit

Fuzz Maniac II Circuit. Original design by Kurtus Richter. Three gain stages, 3-voiced fuzz, modified 3-band Fender-style tone-stack, and two outputs; one standard output and one buffered output. Controls Include: Attenuation 1, Input Gain, Direct Send, Fuzz enable switches (three separate; Warm, Deep, and Normal), Fuzz symmetry switches (six, with 2 positions each), Fuzz Depth, Attenuation 2, Driver Gain, High Trim, Low Trim, Bass, Mid, Treble, Tone Sum, Output Gain, Standard Volume, and Buffer Volume. Maximum Range is from 25 Hz to 25 kHz, with emphasis between 63 Hz and 4 kHz. Low -3 dB corner is at 9 Hz. High -3 dB corner is at 30 kHz. Circuit is suitable for 6/7/8-string guitar and 4/5/6-string bass. Maximum Standard Output gain = +55 dBV (Vo/Vi = 562) @ 630 Hz with all controls at 50%, or +65 dBV (Vo/Vi = 1778) @ 400 Hz with all three Gain controls at 100% but all other controls at 50%. Caution! This is a high-gain circuit with respect to the Standard Output. For half the gain, use the Buffered Output. Power-supply not shown. Requires a regulated dual-polarity supply providing +-9VDC or +-12VDC or +-15VDC at >= 25 mA total circuit current. Though tentatively verified by CircuitLab, treat as experimental.