DoepferA-111-1 VCO 2

Doepfer A-111-1

The A-111 module is a VCO capable of tracking over 12 octaves and producing four different waveforms. Its frequency is controlled by a combination of the Range, Tune, and Fine Tune controls. Additionally, the frequency can be shaped by voltage introduced to either of the module’s CV inputs. The module can be modulated in accordance with both exponential and linear FM and the pulse width of its square wave can be manually controlled or done so via PWM. 

A-111-1 Features

• Steady 1v/Oct over a range of 12 octaves
• 4 Simultaneous waveform outputs: Pulse, Saw, Triangle, and Sine
• Coarse and Fine tune controls
• Linear and Exponential FM inputs
• Pulse Width Modulation
• Hard and Soft Sync inputs