
musicsynthesizer.com
Website with some general synth resources including DIY. via de_engineered in the comments of this post.
EVERYTHING SYNTH

flickr by clattermonger
via dutchsynth.nl, home of Synton and Fenix: "Finaly the second prototype of the GT is ready. A number of updates has been done in this version. Also new functions are added to some modules. Prototype 3 will be having new pcb and some additional features. Sample Please note that the proto are 2 units in one case!! The sequencer (XL1) and the synthesizer (XL2)."