Analogue  Modular  System  A-100

Width

HP

Depth

mm

Current

mA

Owners Manual

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Sales info

Quad Precision Voltage Controlled Oscillator

A-111.4  

18

10HP

40

10HP

120

10HP

The A-111-4 contains four precision VCOs and has individual controls, inputs and outputs for each VCO available as well as a common control and output

Controls, inputs and outputs for each of the four VCOs:

• 1V/Octave CV input
• Octave switch (+1 / 0 / -1 octave)
• Tune control (range adjustable: 2 semitones / 1 octave / 4 octave)
• Modulation CV input
• Modulation destination:
• upper position: exponential frequency modulation (XM)
• lower position: linear frequency modulation (LM) or pulsewidth modulation of the rectangle (PM) (via jumper)
• Frequency Modulation (FM) or Pulsewidth Modulation (PWM)
• Modulation intensity
• Triangle output  (CEM3340 based triangle core)
• Sawtooth output
• Rectangle output (about 50% without external PWM)
• Sync input (hard or soft sync internally selectable, CEM3340 hard sync
• min. 10 octaves range (with appropriate external CV)
• each VCO has it's own separate internal +/- power supply for best stability and the prevention of unwanted sync of the VCOs

Controls, inputs and outputs of the master section:

• 1V/Octave CV input
• Octave switch (+1 / 0 / -1 octave)
• Tune control (range adjustable: 2 semitones / 1 octave / 4 octaves)
• Frequency Modulation CV input (FM)
• FM intensity
• Triangle, Sawtooth & Rectangle sum normalised output
• CV output (outputs the sum CV that is used to control all four VCOs)
• bus CV (selectable via jumper)