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.

Monday, July 6, 2015

Seymour Duncan Pickup Booster

The Seymour Duncan Pickup Booster offers 25 dB of clean boost with flat EQ (and it's also a line driver). It uses a combination of two NPN and one PNP transistor. Originals use BC107s and BC177s, but other transistors should work fine as well. Check out the demo video below for more info.


  1. That's great I was lookin for it
    Thanks David !

  2. Thanks for this, been looking for this guy for a while

  3. hey, i wanna build this pedal but... in the dropbox, in the transfer image library,
    it's not there

    1. thanks :D i will build it, i was looking for this a long time ago

  4. work but Problem Pops when switching

  5. Potensiometer c25k logaritmis / c25k non logaritmis???

  6. Hi,

    my humble little request: Any chance to get a layout for the updated version of 2015? Schematic can be found here:

    Kind regards

  7. what are the replacement for BC177 ???