I just found this cool site by Yves Usson called My Synth DIY pages which contains information about many years of synth-making, collecting, and an ongoing modular synth project.
Yves’ introduction begins:
When I was a teenager, back in the seventies I became fascinated by those weird sounding machines with those huge panels full of blinking light bulbs and knobs. My first encounter with music produced by Moog synthesizers where two radically different pieces: Popcorn (by Gershon Kinsley) and the original soundtrack of Clockwork Orange (by Wendy Carlos). This was really weird at this time but I sure knew that I liked that very much! The music I was listening to was that of bands like ELP, Genesis, Pink Floyd, Yes and so on… Then the Germans came ! Klaus Schulze, Tangerine Dream, Popol Vuh, Kraftwerk, Ash Ra Tempel : fascinating, hypnotic and repetitive. In parallel, some other really interesting musicians extended the realm of synth creativity : Tim Blake, Brian Eno, Jean-Michel Jarre, Vangelis and others.
Take a look.