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Doepfer Musikelektonik logo

Analogue  Modular  System  A-100

Width

HP

Depth

mm

Current

mA

Lighning Flash

Owners Manual

Quad Voltage Controlled Low Frequecy Oscillator /VCO

The A-143.4 is a fourfold voltage controlled low frequency oscillator, though as it is switchable to a range covering up to 15KHz,  can be considered an audio VCO as well.


Each LFO/VCO is independent with frequency control, modulation depth and Triangle and Square outputs.  A reset input allows the wave cycle to be reset to zero.  LFO 4 has an extra reset for Up or Down direction.


A common CV input and frequency control, control are 4 units at once.


The LFO range goes from 0.001Hz (about 1 cycle per hour ! with ultra low option) upto 15KHz (in VCO mode)


LED indictaor are bi-coloured to show polarity of the LFO cycle.



A-143.4

22

60

10HP

100

10HP

A-143.4  

Doepfer A-143.4