SN 80253
"Also named Poly Ensemble or K-4, it was built during the period of 1976 to 1979/80. Its main feature compared to nowadays keyboards is its full polyphonic structure."
EVERYTHING SYNTH

He currently has a number of items for sale here. Captured in this post are some of the synth items including a Chimera BC16, Mutable Instruments Shruti-1, Bugbrand Workshop Oscillator, Korg Monotron and Meeblip. Not pictured is a Dynacord VRS-23 Analog Delay/Reverb.
via the Dieter Doepfer on the Doepfer Yahoo Group: "I just wanted inform you that the knob manufacturer (ReAn Sulzer/ Switzerland) has stopped the production of the knobs that were used in the A-100, MAQ16/3 and other products. We tried to buy the productions tools from ReAn as they are no longer used. But ReAn was not willing to sell the moulds. We are about to find another manufacturer who is able to produce a copy of the knob but I'm not sure if the copies will look exactly the same. I assume that all modules manufactured until end of this year will still be equipped with the original ReAn version of the knobs. But from early in 2012 the modules will be delivered little by little with the new knobs. We will try to get new knobs that look as close as possible to the old ones but I'm not sure if there may be a small noticeable difference.