This site is about building your own guitar effects pedals. Everything here was given freely and is offered freely.
Here is a summary of the topics with links in the right-hand sidebar
- Circuits contains schematics, layouts, and parts lists for pedals like the Tube Screamer and Big Muff Pi.
- Parts is an electronics theory section organized by components (resistors, capacitors, …).
- Thoughts is a catch all.
- Tools lists various useful items for building pedals. There is special attention to Eagle CAD software.
Recent posts are listed below.

If you want to etch a PCB with a layout in Eagle then you will need to create an image like this one to transfer your design. This brief tutorial explains how to set things up so that you can use the Eagle export command. … more …
When building stomp boxes, slide switches have certain advantages over toggle switches. They are less expensive and more durable than toggle switches, which can easily get broken off by clumsy feet or by mishandling. But they can be trickier to fit, requiring a rectangular cavity to function correctly. Here’s a way to fit a slide switch, using only a couple of simple tools. … more …

The Noomerang is a wah pedal by B Tremblay of runoffgroove.com fame. It’s a variant of the Maestro Boomerang wah, which itself is a nice alternative to the usual Cry Baby clones, with some added goodies. … more …