Doepfer A-100(~ 40 MB) - Manual (Page 605)

doepfer System A - 100 Theremin A-178
1
1. Introduction
Module A-178 (Theremin Voltage Source) produces
a variable control voltage which gets bigger the
closer your hand gets to its antenna.
You can use this control voltage in any modulation or
control process, and thus have access to an extra
system of real-time control in the synthesis process.
You use the Offset control to set the null point (zero)
of the control voltage output. Two LEDs give a visual
indication of the voltages produced.
The module also produces a gate signal at the gate
output: the signal goes "high" as soon as a voltage is
sensed which is above the threshold set with the
Threshold control. An LED gives a visual indication
of the presence of a gate signal.
This gives you the ability to produce a gate signal
simply by moving your hand.
A-178
Theremin Volt. Source
Antenna
Threshold
+
-
CV Out
Gate Out
Offset