[sdiy] Doepfer DIY Synth

[Olivier Gillet]

> unless i am overlooking something, the only weird looking chip is the surface mount assembly board....(which could very well be double-sided)it looks similar in execution to whats hearn/morley were/are making with their surface mount SSM filter/vco....

The documentation explains that it is a regulated oven heating up the
chip glued beneath it (likely to be a transistor array?) to a fixed
temperature.