The A-111-1 VCO module has a range of about 12 octaves, and produces four waveforms simultaneously: pulse to rectangle, sawtooth, triangle and sine waves. The frequency is determined by the control voltage at the two CV inputs, a range switch, tune and fine tune controls. For FM (frequency modulation) the A-111 can be modulated both exponentially and linearly. For pulse width modulation (PWM) the pulse width of the square wave can be controlled either by hand, or by voltage control. The A-111 also has inputs for Hard and Soft Sync.
- Width: 14TE/14HP/70.8 mm
- Depth: 65 mm measured from the rear of the front panel
- Current draw: 40 mA
A-111-1 High-End VCO at Doepfer Musikelektronik