Module Row Width Depth +12V -12V +5V
4 Modules (1 passive)Row 133 HPmax 65 mm142 mA +12V80 mA -12V0 mA +5V
4 Modules (1 passive)Total33 HPmax 65 mm142 mA +12V80 mA -12V0 mA +5V
Tenderfoot Electronics Ringr Tenderfoot Electronics Ringr
2 Channel Passive Ring Modulator
1  4 HP  28 mm  Module does not draw current
Befaco Percall Befaco Percall
VC Quad Decay & Four Channel Mixer
1  12 HP  25 mm  80 mA  60 mA  0 mA 
Erica Synths Pico Logic Erica Synths Pico Logic
2x8 Boolean logic algorithms just in 3HP
1  3 HP  35 mm  22 mA  0 mA  ? 
Doepfer A-137-1 Doepfer A-137-1
Voltage Controlled Wave Multiplier I
1  14 HP  65 mm  40 mA  20 mA  0 mA 

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