Doepfer A-100(~ 40 MB) - Manual (Page 603)

doepfer System A - 100 Control Voltage Source A-176
5
Fig. 2: Coarse and fine tuning an A-110 VCO.
Recalling pre-set CV values
Combined with an A-150 (or A-151) voltage-controlled
switch, the A-176 can be used as a source of pre-
programmed voltages.
A control voltage CV
S
is patched into the A-150, and,
depending on its voltage, sends CV1 or CV2 from the
A-176 to the A-150’s output. This original control
voltage CV
S
can come from a MIDI controller via an
A-190 or A-191 MIDI interface. That can give you, for
example, velocity or aftertouch switching of filter
modulation intensity (see Fig. 3).
Control voltage CV
S
can also come from a sequencer
(for instance the A-160 / A-161 or MAQ 16/3), to
change volume levels each time a pattern repeats.
Fig. 3: Using a voltage-controlled switch to alternate
between two pre-programmed modulation le-
vels.
SYNC
CV 2
CV 2
CV 1 Range
A-110
VCO
Tune
CV
A-176
Contr. Volt. Source
CV 1
Fine
CV 1
}
Tune
A-132
CV
S
CV
O/I
A-150
I/O 1
I/O 2
CV 1
CV 2
A-176
VCO
VCF
LFO