2-Voiced Hybrid Fuzz Circuit 1 PUBLIC

2-Voiced Hybrid Fuzz Circuit, Version 1, for Guitar.

2-Voiced hybrid diode + transistor fuzz circuit for guitar, with 3-band tone. The fuzz voices are from two arrays with different devices; one soft-clipping diode array with dedicated op-amp, and one hard-clipping transistor array, using transistors configured to work as diodes, with a separate dedicated op-amp. The "hybrid" designation indicates use of both hard-clipping (shunt type) and soft-clipping (feedback type) arrays, along with different kinds of fuzz-generating devices in the arrays. Controls Include: Input Gain, Master Drive, Fuzz 1 enable switch, F1 symmetry switches, Fuzz 1 Depth, Fuzz 1 Gain, Fuzz 1 Level, Fuzz 2 enable switch, Fuzz 2 symmetry switches, Fuzz 2 Gain, Fuzz 2 Drive, Fuzz 2 Depth, Bass, MId, Treble, and Volume. Range above 0 dBV is from 25 Hz to > 25 kHz. Suitable for 6/7/8-string guitar or 4/5/6-string bass, with emphasis on mids and highs (from 250 Hz to 2.5 kHz). Maximum gain = +30.8 dBV (Vo/Vi = 34.7) @ 400 Hz with all controls at 50%, or +61 dBV (Vo/Vi = 1148) with all controls at 100%. Tone controls offer the following adjustments above and below the response curve obtained with all other controls at 50%: Treble, +-10.8 dBV. Mid, +-17.2 dBV. Bass, +-13.5 dBV. Power-supply not shown. Requires a regulated dual-polarity DC supply providing on of the following: +-9VDC or +-12VDC or +-15VDC at >= 60 mA of current. And while simulator verified, treat the circuit as experimental in nature. Breadboard test before committing to a soldered build. House completed project in a grounded metal enclosure.