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.

  3. Built it. Sounds good, very smooth. However the 10uF electro below the LM833 is shown with the wrong polarity. It has -9 volts going to its positive lead.