Reader Kevin wrote in to point out an excellent resource for DIY synth makers – Ken Stone’s Modular Synthesizer site offers an excellent selection of schematics for all manner of synth building, and sells PCBs for most of the circuits listed – some very cool unusual stuff too like the V8 simulator and Stompbox adapter for starters. (You may recall I referenced the simple but handy LED driver in my Noise Toy build) – Modular Synth
