Module Row Width Depth +12V -12V +5V
12 Modules (0 passive)Row 2124 HPmax 49 mm693 mA +12V146 mA -12V0 mA +5V
9 Modules (1 passive)Row 364 HPmax 55 mm313 mA +12V194 mA -12V0 mA +5V
21 Modules (1 passive)Total188 HPmax 55 mm1,006 mA +12V340 mA -12V0 mA +5V
Stoel Music Systems Standard VCO Stoel Music Systems Standard VCO
VCO with FM, hard and soft sync, and SH-101 style sub oscillator
2  16 HP  25 mm  25 mA  20 mA  0 mA 
Stoel Music Systems Discrete VCF Stoel Music Systems Discrete VCF
A multimode filter made with discrete transistors
2  8 HP  26 mm  5 mA  5 mA  0 mA 
Stoel Music Systems Standard VCO Stoel Music Systems Standard VCO
VCO with FM, hard and soft sync, and SH-101 style sub oscillator
2  16 HP  25 mm  25 mA  20 mA  0 mA 
Stoel Music Systems Discrete VCF Stoel Music Systems Discrete VCF
A multimode filter made with discrete transistors
2  8 HP  26 mm  5 mA  5 mA  0 mA 
Stoel Music Systems Quad VCA Stoel Music Systems Quad VCA
Four Logarithmic VCAs in one slim module
2  4 HP  37 mm  19 mA  16 mA  0 mA 
Stoel Music Systems Standard VCO Stoel Music Systems Standard VCO
VCO with FM, hard and soft sync, and SH-101 style sub oscillator
2  16 HP  25 mm  25 mA  20 mA  0 mA 
Stoel Music Systems Discrete VCF Stoel Music Systems Discrete VCF
A multimode filter made with discrete transistors
2  8 HP  26 mm  5 mA  5 mA  0 mA 
Stoel Music Systems Standard VCO Stoel Music Systems Standard VCO
VCO with FM, hard and soft sync, and SH-101 style sub oscillator
2  16 HP  25 mm  25 mA  20 mA  0 mA 
Stoel Music Systems Discrete VCF Stoel Music Systems Discrete VCF
A multimode filter made with discrete transistors
2  8 HP  26 mm  5 mA  5 mA  0 mA 
Stoel Music Systems Quad VCA Stoel Music Systems Quad VCA
Four Logarithmic VCAs in one slim module
2  4 HP  37 mm  19 mA  16 mA  0 mA 
Stoel Music Systems Spring Reverb Stoel Music Systems Spring Reverb
Spring reverb with external feedback loop
2  6 HP  33 mm  35 mA  7 mA  0 mA 
Stoel Music Systems Vacuum Tube Ring Mod Stoel Music Systems Vacuum Tube Ring Mod
A ring modular made with vacuum tubes and transformers
2  14 HP  49 mm  500 mA  7 mA  0 mA 
Doepfer A-190-5 Doepfer A-190-5
Polyphonic Midi/USB-to-CV/Gate Interface
3  16 HP  55 mm  120 mA  40 mA  ? 
Stoel Music Systems CV Source Stoel Music Systems CV Source
Dual CV source with coarse and fine controls
3  4 HP  21 mm  4 mA  5 mA  0 mA 
Stoel Music Systems Dual Morphing LFO Stoel Music Systems Dual Morphing LFO
Two LFOs that modulate one another
3  14 HP  21 mm  40 mA  45 mA  0 mA 
Stoel Music Systems Clock Divider Stoel Music Systems Clock Divider
Clock divider with six divisions and reset
3  4 HP  27 mm  26 mA  0 mA  0 mA 
Stoel Music Systems Buffered Multiple Stoel Music Systems Buffered Multiple
Specialized multiple to precisely distribute CV sources
3  4 HP  25 mm  14 mA  0 mA  0 mA 
Stoel Music Systems Dual Lin/Log VCA Stoel Music Systems Dual Lin/Log VCA
Two VCAs with selectable linear or log response
3  8 HP  20 mm  20 mA  20 mA  0 mA 
Stoel Music Systems Dual Multiple Stoel Music Systems Dual Multiple
Dual passive multiple
3  4 HP  20 mm  Module does not draw current
Stoel Music Systems No-Knob Mixer Stoel Music Systems No-Knob Mixer
Eight input summing mixer without knobs
3  4 HP  26 mm  4 mA  4 mA  0 mA 
Stoel Music Systems Headphone Amplifier Stoel Music Systems Headphone Amplifier
Stereo headphone amplifier with mono summing
3  6 HP  36 mm  85 mA  80 mA  0 mA 

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