This is a library of perfboard and single-sided PCB effect layouts for guitar and bass. I'm not an electrical engineer by any stretch of the imagination, just a DIY'er who likes drawing layouts. It is meant for the hobbyist (so commercial use of any of these layout is not allowed without permission) and as a way to give back to the online DIY community.

Wednesday, November 19, 2014

Fulltone Fat Boost v1

There was some controversy over this pedal from Fulltone as the circuit is practically identical to the Jack Orman Mini-Booster. Fulltone no longer makes this version of the Fat Boost and now makes a 4-control version with an extra FET stage and more EQ controls. Regardless, it's a great pedal for beefing up your tone. 

The perf and PCB layouts are slightly different. I was able to give the components more breathing room on the PCB that wouldn't be feasible on perf.


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  2. I think you should reverse the 3u3 cap.
    Q2 gate voltage is lower than the source.

  3. I’ve been getting a popping noise. I am fairly new to this so is the 1M my pull down resistor?

    1. You can try upping the 1M resistor coming off Pre-Gain 2 or add another pull down resistor to the output. Sometimes though it's just a poppy switch. YMMV

    2. Thanks, man. I’ll try it today. Long time listener, first time caller. Lol thanks for doing all these. It’s been really fun to get into.