Manual

1969 OPERATORS’ MANUAL6
Attack: Six switchable Attack settings are provided giving various
settings. The actual attack time is further modified by the
release setting chosen.
Attack Times: 1 2 ms
2 8 msec
3 15 msec
4 25 msec
5 30 msec
6 50 msec
Release: There are three fixed Release times and a further three
which are programme dependent. Switch settings 1
through to 3 provide progressively increasing release times,
while positions 4, 5 and 6 cause the release times to vary in
a manner which automatically adapts to the dynamics of the
incoming signal, as detailed below:-
Release Times 1 100 ms (Fixed)
2 500 msec (Fixed)
3 1 sec (Fixed)
4 Semi-Auto 200 ms to 2 sec Signal dependent
5 Semi-Auto 500 ms to 5 sec signal dependent
6 Automatic 1 sec to 10 sec signal dependent
Output: (Gain) The Output level may be amplified, or attenuated by up to
20dB to compensate for level changes caused by
compression.
VU Meter: A moving coil VU meter monitors either the level of the
output signal (over the range -10dB to +10dB with reference
to the +4dBu operating level) or the amount of gain
reduction taking place. Because the meter has VU
characteristics, it closely reflects what is actually being
heard, though will not respond quickly enough to register
short signal peaks.
VU / GR: Switches the meters to show either the output level (VU) or
the amount of gain reduction (GR).
Norm/Bypass
S/C Listen: Normal mode, the signal is passed through the compressor.
Bypass takes the compressor and the vacuum tubes out of
circuit path; the output signal is taken from the signal insert
return point.
S/C Listen routes the side-chain signal directly to the
output allowing the effects of any additional side-chain
processing, such as equalisation, to be monitored.