Controls
- Fuzz – Adjusts the amount of fuzz
- Volume – Controls the output volume
- Sun – External bias control
- Clean (internal trim) – Cleans up the fuzz signal (similar to rolling back guitar volume)
- Bias (internal trim) – Internal (preset) bias control
Specifications
- Designed for a 125B enclosure with top-mounted jacks
- Onboard Voltage Inverter – Runs on standard 9VDC pedal power, no grounding issues in pedal chain
couch.rich (verified owner) –
Best Fuzz I own! Its great, and cleans up really nicely . The sound I’ve been looking for for a single coil neck pickup. It’s almost impossible to find the NKT 275s. I used 2SB 171s instead (just looked at options offered in the pedal this is inspired by and chose some transistors i thought would work for me).
Crispyfunk (verified owner) –
I used GT402b with my build. This is the best sounding fuzz ive used so far .I swapped R2 for a 100k trimmer to better bias Q1 emitter to0.7v then set Q2emitter to 4.55 exactly half the supply voltage coming off the charge pump. i like to have a little input resistance . it helps clean up a bit better when i roll the guitar volume back. if i build another i would put the input resistance pot external . 10 out of 10 awesome sounding circuit.
Crispyfunk (verified owner) –
I used GT402b with my build. This is the best sounding fuzz ive used so far .I swapped R2 for a 100k trimmer to better bias Q1 collector to0.7v then set Q2collector to 4.55 exactly half the supply voltage coming off the charge pump. i like to have a little input resistance . it helps clean up a bit better when i roll the guitar volume back. if i build another i would put the input resistance pot external . 10 out of 10 awesome sounding circuit.
Locrian99 (verified owner) –
It’s a fuzz face with a bias knob. Sounds awesome. I used gt310b’s from ebay worked great. 75hfe q1/120 for q2
Matt Olson (verified owner) –
I’ve built 3 of these- two I gave to friends and one will never leave my board. I used some old Japanese transistors (2SB56 and 2SB175) that I yanked out of a busted reel to reel in mine and it sounds amazing- cleans up beautifully. I wired the “clean” trim up as an external side mounted pot- it’s a worthwhile mod but it doesn’t do anything your guitars volume can’t. Still probably more useful than the fuzz knob though which I think sounds best dimed at all times.