A-143-9 Voltage Controlled Quadrature Thru-Zero LFO / VCO

Doepfer A-143-9

Module A-143-9 is a VC LFO with four individual outputs, each with a phase shift of 90 degrees: sine, cosine, inverted sine, inverted cosine. The module features two exponential frequency controls with dedicated attenuators and a toggle switch that selects between three different frequency ranges. While the module does not have a 1V/Oct input, it can be used as an experimental sine-wave VCO.

A-143-9 Features

• Four 90 degree phase-shifted outputs of a sine wave LFO/OSC
• Great for Morphing modulation
• Super clean sine wave
• Extremely wide frequency range control
• Three position toggle switch for changing frequency range
• Two CV inputs, one with a dedicated attenuator
• LED signal indication