runoffgroove.com projects are provided free-of-charge to builders for their personal use. We do offer licensing for commercial builders who wish to sell pedals based on, in whole or in part, our projects. As part of the licensing agreement, the builder must clearly state that the circuit was developed by runoffgroove.com, both in promotional literature and on the circuit board. If you see a pedal for sale that seems to be based on a runoffgroove.com project and does not credit us, the builder may not be officially licensed by us and therefore, not compensating us as the developer. Please contact us with the information and we will investigate the situation. Thank you.

Build a breadboard power module - Simplify integrated circuit breadboard projects.

Condor Cab Sim - A professional-quality 4x10 open-back speaker cabinet simulator. Includes PCB layout.

Double D - Two channels of buxom distortion. Schematic and PCB/perfboard layouts.

EA Tremolo - A few improvements to a DIY classic. Schematic and and PCB/perfboard layouts.

Eighteen - The Marshall 18W adapted for use as a distortion stompbox. Schematic, PCB/perfboard layouts, and photos.

The English Channel - The Vox AC-30 Top Boost adapted for use as a distortion stompbox. Schematic and PCB/perfboard layouts.

FAQ - Frequently Asked Questions about runoffgroove.com and its content.

Fetzer Valve - A closer look at the FET booster based on a vintage Fender 12AX7 input stage. Schematics, PCB/perfboard layouts, JFET tester schematic, and online calculator.

Flipster - The Ampeg SB-12 Portaflex adapted for use as a distortion stompbox. Schematic and PCB/perfboard layouts.

Grace / Big Daddy - Article, schematics, and PCB/perfboard layouts.

Little Gem - Two 9v battery-powered amps based on the LM386. Schematic and PCB/perfboard layouts.

MacRuby - A Macintosh Plus computer converted to a combo amp, powered by the Ruby. Includes a video demo.

Matchbox - The Matchless DC/30 adapted for use as a distortion stompbox. Schematic, PCB/perfboard layouts, and photos.

May Queen - A stone cold crazy treble-boosted overdrive. Schematic, PCB/perfboard layouts, and photos.

Mr. EQ - A simple, yet potent DIY equalizer. Schematic, PCB/perfboard layouts, and photos.

Mockman - Schematic of a Rockman-like distortion. Schematic and perfboard layout.

Multi-Face - Inspired by Tim Escobedo's "The Many Faces of Fuzz." Build notes, photo, and PCB/perfboard layouts.

New Clipper - Article, schematic, photos, and layouts for perfboard or PCB.

Odie - FET overdrive developed as a Tube Screamer alternative. Schematic and perfboard layout.

Omega - A versatile FET booster engine. Schematic and perfboard/PCB layouts.

Perfboard Templates - Templates for drawing perfboard layouts.

Peppermill - A simple, transparent overdrive. Schematic and PCB/perfboard layouts.

Phozer - A faux-phaser circuit with LFO and manual (wah pedal) modes. Schematic and and PCB layout.

Professor Tweed - The Fender Princeton adapted for use as a distortion stompbox. Schematic, PCB/perfboard layouts, and photos.

Ruby - A refined and updated Little Gem amplifier. Schematic, PCB/perfboard layouts, and photos.

Sili-Face - Improved Silicon Fuzz Face. Schematic, build notes, photo, and PCB/perfboard layouts.

Sili-Face II - A less bombastic version of its predecessor. Schematic and and PCB/perfboard layouts.

Splitter-Blend - Dual parallel buffered effect loops with blend control. Schematic and perfboard/PCB layouts.

Supreaux Deux - The Supro 16T adapted for use as a distortion stompbox. Schematic and perfboard/PCB layouts.

Tantalus Project - A refined Fuzz Face. Schematic and PCB layout.

Thor - The legendary Marshall 100W Super Lead adapted for use as a distortion stompbox. Schematic and PCB layout.

3 Legged Dog - 4049-based distortion. Schematic, PCB/perfboard layout, and photos.

Tonemender - An ultra-flexible tonestack with clean boost. Schematic, photo, and PCB/perfboard layouts.

Tube Reamer - Tube Screamer-based overdrive. Schematic and PCB/perfboard layouts.

Umble - A distortion stompbox, inspired by Dumble amplifiers. Schematic and PCB/perfboard layouts.

Uno - The Boogie MkI adapted for use as a distortion stompbox. Schematic and PCB/perfboard layouts.

Whisker Biscuit - Big Muff Pi variant using Bazz Fuss as clipping stage. Schematic and and PCB/perfboard layouts.

www.home-wrecker.com - Our official archive of older, mostly clone-related DIY-fx information and many sound clips.