Module Row Width Depth +12V -12V +5V
11 Modules (1 passive)Row 1104 HPmax 74 mm445 mA +12V310 mA -12V0 mA +5V
11 Modules (1 passive)Total104 HPmax 74 mm445 mA +12V310 mA -12V0 mA +5V
Allen Synthesis EuroPi Allen Synthesis EuroPi
Reprogrammable Multi-Function Controller
1  8 HP  27 mm  90 mA  8 mA  0 mA 
Allen Synthesis USB Router Allen Synthesis USB Router
Route data and power from front to back
1  2 HP  30 mm  Module does not draw current
Erica Synths DIY Polivoks VCO II Erica Synths DIY Polivoks VCO II
Updated design based on the original Polivoks VCO
1  12 HP  35 mm  34 mA  36 mA  ? 
Erica Synths DIY Polivoks VCO II Erica Synths DIY Polivoks VCO II
Updated design based on the original Polivoks VCO
1  12 HP  35 mm  34 mA  36 mA  ? 
Erica Synths DIY Polivoks VCF II Erica Synths DIY Polivoks VCF II
Updated design based on the original Polivoks VCF
1  10 HP  30 mm  11 mA  11 mA  ? 
Erica Synths DIY Polivoks-inspired VCA Erica Synths DIY Polivoks-inspired VCA
Dual VCA based on K118UD1 differential opamps
1  8 HP  35 mm  25 mA  18 mA  0 mA 
Erica Synths Polivoks(ish) ADSR EG DIY kit Erica Synths Polivoks(ish) ADSR EG DIY kit
Unique ADSR envelope generator that mimics Polivoks envelope generator behavior
1  8 HP  74 mm  42 mA  37 mA  0 mA 
Erica Synths DIY Modulator II Erica Synths DIY Modulator II
LFO with simultaneous triangle and square wave outputs, clockable S&H with external CV input and noise source.
1  8 HP  35 mm  27 mA  22 mA  ? 
Erica Synths DIY Delay Erica Synths DIY Delay
Hi-Fi delay with Sync, Hold, Add and Reverse functions
1  14 HP  45 mm  97 mA  33 mA  0 mA 
Erica Synths Black Spring Reverb Erica Synths Black Spring Reverb
1  12 HP  30 mm  43 mA  71 mA  0 mA 
Erica Synths Black CV Tools Erica Synths Black CV Tools
Full analogue CV and audio processor
1  10 HP  35 mm  42 mA  38 mA  0 mA 

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