Tribute to Craig Anderton 5: Bass Fuzz PUBLIC

Bass Fuzz with Compression and 3-Band Tone

Bass fuzz circuit using feedback-type Schottky diodes together with compression and a 3-band Fender-style tone-stack. All subcircuits except the tone-stack are based on designs by Craig Anderton. For least noise, input signal should be direct from a passive bass-guitar or clean active bass-guitar with volume turned down. Controls Include: Input type switch (Direct or Line), Compression, Gain 1, Drive, Bass, Mid, Treble, Stack Depth, Fuzz enable switch, Fuzz symmetry switches (two, with two settings each), Fuzz Depth, Highs switch (Normal or Boost), Gain 2, Volume. Frequency Range at or above 0 dBV is from 8 Hz to 1.8 kHz. Suitable for 4/5/6-string bass or 8-string guitar with all controls at 50%. Note: High-end reach extends with increasing control settings > 50%. Example: Maximum Gain = +68.4 dBV @ 160 Hz with all controls at 100%, at which bandwidth above 0 dBV is from 4 Hz to 16 kHz. [Caution! Do not set all controls at 100% except briefly as a worst-case scenario during breadboard testing.] Normally, Maximum Gain = +35 dBV @ 100 Hz with all controls at 50%. Cleanest sound will be obtained with most controls set <= 50%. Power-supply not shown. Requires a regulated dual-polarity DC supply providing +-9VDC or +-12VDC or +-15VDC or +-18VDC at >= 40 mA of current. [Note: Higher supply voltage results in lower op-amp noise. Do not exceed +-18VDC.] And though simulator verified, treat the circuit as experimental. Breadboard test before committing to a soldered build. House completed project in a grounded metal enclosure.