Blacet Research - Analog synth kit manufacturer; many odd and useful FracRak-compatible modules. Synthesis Technology - Source for CEM chips, MOTM modular sythesizer kits (and mods), tips for DIYers, and Synergy refurb information. Dave's Hot Rod MOTM Shop - Offers a source of mods for SynthTech MOTM modules. DIY Oakley Modular Synthesiser - Site dedicated to construction of a synthesiser based on Oakleysound modules Jim Patchell's DIY Synth Page - A site dedicated to those who enjoy building their own electronic musical instruments. Synthesizer Projects - Analog synthesizer DIY projects and modifications to vintage synthesizers. SynthDIY.com - SynthDIY.com has been put online to gather ALL information about making your own musical instruments. The goal is to have all DIY / Mods / profit / nonprofit products on this site. Bergfotron - Analog modular synthesizer plans and pictures in great detail. Ken Stone's Modular Synthesizer - Many unusual circuits for a modular synth. PCBs for sale.