Specifications

My modular runs off of +/- 15v DC. The panels are mounted on Rack Rails and are each 5U high. It uses 1/4" jacks. There are currently 12 modules, as follows (from left to right):
  • Voltage Controlled Oscillator 1
  • Voltage Controlled Oscillator 2
  • Dual Logarithmic/Linear Voltage Controlled Amplifier
  • Dual Low Frequency Oscillator
  • Attack, Decay, Sustain, Release Generator 1
  • Attack, Decay, Sustain, Release Generator 2
  • Voltage Controlled State Variable Filter
  • Sample and Hold and White Noise Generator
  • Dual DC Mixer
  • Triple Guitar Interface
  • Voltage Controlled Lowpass Filter
  • Power Supply/Switch







Voltage Controlled Oscillator 1+2
Built from designs from Music from Outer Space: http://musicfromouterspace.com/analogsynth/VCO200503REV01/VCO200503REV01.html
Controls: Fine tune, Coarse tune, Pulse Width
Jacks: 2x Lin CV in, Pulse Width Modulate, Sync In, 4x CV in, Saw out, Square/Pulse/Rect out, Triangle out, Sine out

Dual Log/Lin VCA
Built from designs from Music from Outer Space: http://musicfromouterspace.com/analogsynth/DLLVCA001/DLLVCA001.html
Controls: Offset Adjust A and B, Log/Lin switch A and B
Jacks: 2x CV in A, In A, Out A, 2x CV in B, In B, Out B



Dual Low Frequency Oscillator
Built from designs from Music from Outer Space: http://musicfromouterspace.com/analogsynth/NewAugustSIN_TRI_SQR_LFO.html
Controls: Frequency A and B, Long/Short switch A and B, speed indicating LEDs
Jacks: Triangle out A and B, square out A and B, sine out A and B

ADSR 1+2
Built from designs from Music from Outer Space: http://musicfromouterspace.com/analogsynth/norgate_adsr_001.html
Controls: Attack, Decay, Sustain, Release, Output level, Long/short switch, Manual gate, Manual trigger, State indicating LEDs
Jacks: ADSR out, Gate in, Trigger in

Voltage Controlled State Variable Filter
Built from designs from Music from Outer Space: http://musicfromouterspace.com/analogsynth/statevariablefilter.html
Controls: Frequency, Q
Jacks: 2x CV In, Input, Bandpass out, Highpass out, Lowpass out



Sample and Hold/White Noise Generator
Built from designs from Music from Outer Space: http://musicfromouterspace.com/analogsynth/sandh.html
Controls: Sample Rate, Input Level, Glide, Output Offset
Jacks: 2x input, Output, White Noise out, Gate Out, Trigger Out

Dual DC Mixer
Built from designs from Music from Outer Space: http://musicfromouterspace.com/analogsynth/dcmixer.html
Controls: 8x input level
Jacks: 8x Input, 2x Output, 2x Inverted output

Triple Guitar Interface
Built from designs from Cat Girl Synth: http://cgs.synth.net/modules/index.html
Jacks: 3x Guitar In/Out, 3x Send/Receive

Voltage Controlled Lowpass Filter
Built from designs from Cat Girl Synth: http://musicfromouterspace.com/analogsynth/vcf.html
Controls: Frequency, Q
Jacks: 2x CV In, Input, Output

Future Paia MIDI-CV Converter
To be built from a kit from Paia: http://paia.com/midi2cv.htm

Power Supply/Switch
Built from a PowerOne power supply
Controls: On/Off LED, Power Switch


My greatest thanks to Ray Wilson for providing such a large assortment of great designs and for all of the help he gave me along the way.