Description
The VCZIII series VCO is a result of the collaboration of Feedback modules and CMS-LAB. This VCO is a modern re-creation of those temperamental, organic and beautiful sounding oscillators from the pin-matrix synth of 1969, but with enhancements and adaptations for the Eurorack needs of the 21st century.
There are two type of VCZIII module available, this is the VCZIII A – based on VCO1 with variable shape SINE & SAW waveforms. Also available is VCZIII B – based on VCO2 & VCO3 with variable TRIANGLE & PULSE waveforms.
Each oscillator has controls for tune, FM, shape, mix, and sync. Besides this, they come with a 1v/octave input, CV shape in, sync in, and FM in. On the output side, there are individual waveform outputs and a mix-out.
THIS PREMIUM VERSION COMES WITH A BOURNS MULTI-TURN FINE TUNE POTENTIOMETER.
Features & additions to the original design:
- Optimised to work at standard 1V/octave (the original has 0.32V/octave)
- Two knobs for fine and coarse tuning (original had only one knob)
- Added voltage controlled waveshape modulation (which opens a world of new sound possibilities)
- Added a MIX out where you can have a combination of the two main waveforms
- Separate outs for all waveforms and for the mixed wave
- All waveform outs are 10Vpp, consistent with eurorack standards (the original was sine=3V, saw=4V, square=4V, triangle=6V)
- Ranges of shaper knob optimised to not go out of the useful range
- Better temperature balancing in the exponential converter by using a supermatch transistor pair like AS194/AS394
- Variable oscillator SYNC with a potentiometer (which opens a world of new sound possibilities)
- Frequency modulation input
Specs:
- Width: 12HP
- Depth: 35mm behind front panel including the power connector
- Power Consumption: +12V 50mA , -12V 30mA
- Standard 10 pin euro power +12V / -12V
VCZIIIA Premium – Build Document | User Manual
