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Created 1 day, 8 hours ago
Last modified 8 hours, 36 minutes ago
Tags fuzz-circuit  

Summary

6-Voiced Fuzz Circuit for Electric Guitar


Description

6-voiced diode fuzz circuit for electric guitar. Controls Include: Input Gain, Input Level, Drive, Diode Array switches and Depth controls, Tone, and Volume. Each Diode Array has a dedicated enable switch, two dedicated symmetry switches (with 2 setting per switch), and a dedicated Depth control. With all diode arrays disabled (i.e., no fuzz), the circuit will serve as a high-gain overdrive. Each Diode Array clips the signal, though most effect circuit gain only slightly, with the exception of Array 2 (the soft-clipping Schottky array), which attenuates maximum gain by ~ 10 dBV when enabled, with all controls at 50%. Arrays are: Array 1 uses standard silicon diodes, Array 2 uses doubled Schottky diodes, Array 3 uses standard silicon diodes with different ratings to those in Array 1, Array 4 uses singular Schottky diodes, Array 5 uses germanium diodes, and Array 5 uses red LEDs. The different voices stem from the difference in diode types and/or whether an array is a feedback type or shunt type. The frequency range at or above 0 dBV is from 44 Hz to 5.2 kHz with all controls at 50%. Suitable for 6/7-string guitar (not good for 8-string guitar or bass-guitar). Maximum gain = +30.9 dBV (Vo/Vi = 35) with all controls at 50%, or +60.8 dBV (Vo/Vi = 1096) with all controls at 100%, at which bandwidth extends from 34 Hz to 26 kHz. Do not use the circuit with all controls at 100% except briefly as a worst-case scenario during breadboard testing. Power-supply not shown. Requires a regulated dual-polarity DC supply providing +-9VDC or +-12VDC or +-15VDC at >= 50 mA of current. And while simulator verified, treat the circuit as experimental in nature. Meaning, thoroughly breadboard test it before committing to a soldered build. House in a grounded metal enclosure.


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