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.

Thursday, September 14, 2017

Wampler Sovereign

Here's another Wampler take on the JFET mu-amp design. This one adds a op amp stage at the output and features a Big Muff-style tone stack. This one's pretty versatile and a great sounding distortion. Ian sent me his perf layout of this one and I refined it a bit for what you see below, so a special thanks to him. Schematic can be found over on FSB.


  1. you are ... the stomp boxes prophet ``!!

  2. You can mark it verified! The only thing I changed was the Mids pot, I connected lugs 1 and 2 to the 33nf cap and lug 3 to ground. It should work either way though.

  3. I etched the pcb a while ago and just yesterday i populated the pcb. At first it does not fired up and after debugging i found our that the Gate on the Q2 is not connected on the pcb side. Now its working good.