Founded in 2006, Retro-Sonic produces recreations of the best classic guitar effects ever made – updated with modern components and sought-after features.
AMZ is a resource with information about guitar effects pedals, stompboxes, audio circuits and tips on how to build them. Written by Jack Orman.
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Guitar Pedal Circuits, Amplifier Analysis, Chip Internal Schematics, Modifications, PCBs,effects study, frequency response and stompboxes
PedalDoctor FX first hit the Nashville scene in the mid 90's with the Zoo Bee Fuzz pedal and now offers a complete line of custom built point-to-point hand wired effects pedals designed for stage and studio alike
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Freedom Guitar: Serving Musicians and Collectors Worldwide