The Little Putney - Analogue Systems Based Synthi

via Zeitdehner's modular pages where you'll find more pics and the full write-up.

"1x RS-420 Octave controller
3x RS-95e VCO
1x RS-500e EMS Synthi filter
1x RS-20 Ring modulator/multiple
1x RS-510e EMS Synthi trapezoid generator
1x RS-40 Noise, S&H, clock
1x RS-70 Inverter/preamp
1x RS-165 Audio signal mixer
1x RS-190 Meter/inverter
1x RS-390 Mono in / stereo out echo
2x RS-180 VCA

A VCS3 hardware emulation would not be complete without a patch matrix, a joystick and a spring reverb. So, once again, I did a design for a panel with Front panel designer and had it made by Schaeffer AG . The panel is designed to hold a 20x20 matrix by Ghielmetti, a 10x10 matrix as patch pin holder, two Doepfer A-174-1 joysticks, a Doepfer A-199 spring reverb, 20 input jacks to the matrix and 20 output jacks from the matrix."

Bottom pic from Zeitdehner's DIY page where you'll find additional DIY projects."