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.

Tuesday, September 22, 2015

SoulSonic FX Stage Overdrive

Here's a cool overdrive circuit designed by Martin from SoulSonic FX. It's said to be a "Klon Killer," so if you've been disappointed by that circuit, give this one a go. Signal goes through a buffer then is split between clean out put and the rest of the effect. So not a true-bypass effect, but having a buffer in your signal chain won't kill you. And the buffer on this thing is really top notch. For switching use one side of a DPDT for the effect, and the other for the LED indicator. For more info and the schematic, check out the thread on FSB.


  1. I built it a while ago (from another layout) and it sounds REALLY GOOD! I recomend it a lot!

  2. Just built this and immediately boxed it - definitely a 'Klon Killer' or whatever you wanna call it! Very low gain overdrive, but great for what I need it to do (for pushing into effects or into a quiet amplifier). Great tone and great clarity. Definitely not an 'exciting' effect, but certainly gratifying in it's own way. Polished. Classy. Yes.