Stompbox Distortion Circuits
- Harmony Central Effects
- www.geofex.com. Guitar Effcts web page
- www.amptone.com. Amp tone and effects tips.
- GM Arts effects page
- DIYstompboxes.com
- Muzique.com Effects and store
- Guitar-related circuits Schematics
Tube Amps
- Fender Field Guide
- www.drtube.com Guitar amp schematics
- www.schematicheaven.com Tube amp and stompbox schematics
- blueguitar.org Schematics and wiring articles
- www.duncanamps.com Tube data sheets and articles
- Ampage Tube amp forum, data, schematics
- Aiken Amplification Writeups on tube amp design
- www.diyguitarist.com Tube amp projects
- How tubes really work Vacuum tube device physics
- Steve Bench's tube pages Tube data
- McCorquodale's page UMich PhD circuit designer's analysis writeup on tube preamp design
DIY Audio
- diyAudio.com Forum and technical discussion of audio circuits
- Elliott Sound Products Projects and articles
- www.pmillet.com Collection of vacuum tube circuits documentation.
Music DSP
- DSPRelated.com Forums
- Music-DSP source code archive
- Discussion thread on practical DSP distortion implementation
