Doepfer A-100(~ 40 MB) - Manual (Page 405)

doepfer System A - 100 Voltage Contr. Decay / Gate A-142
3
3. Controls and indicators
1 Decay
This is used for manual control of the decay time t
D
of
the envelope generated. After an extremely short at-
tack phase, the envelope runs from maximum to zero
in the time that has been set by this control (see fig. 1).
2 CV
Attenuator 2 is used to set the level of the control
voltage present at CV input ", which in turn controls
the length of the decay.
3 LED
LED 3 shows the voltage level of the envelope being
sent to output §.
4 LED
LED 4 is the indicator for the gate signal at output $.
5 Threshold
Control 5 is used for setting the threshold which
determines the length of the gate signal produced.It
works like this: the gate signal t
G
at output $ starts
when a trigger is sensed, and stops whenever the
envelope voltage falls below the threshold level, which
you set with control 5 (see fig 1).
fig. 1: How the A-142 responds to a trigger
Simultaneously, at output % , an inverted gate signal
is available.
0 V
0 V
0 V
0 V
Trig In
Env Out
Threshold
Gate Out
Inv. Gate Out
t
D
t
G