User`s guide

iv
UNIVERSAL AUDIO 1176LN .................................................................................II
1176LN S
PECIFICATIONS
..............................................................................................................................1
I
NSTALLATION
...............................................................................................................................................2
Rear Panel Connections...............................................................................................................................2
230 Volt Operation.....................................................................................................................................2
Stereo Interconnection.................................................................................................................................2
1176 LN O
PERATION
...................................................................................................................................3
Meter Function / On-Off Pushbutton Switches............................................................................................3
Compression Ratio.......................................................................................................................................3
Input Level.....................................................................................................................................................3
Output Level.................................................................................................................................................3
Attack Control...............................................................................................................................................3
Release Control............................................................................................................................................4
Stereo Operation.........................................................................................................................................4
C
ALIBRATION
................................................................................................................................................5
“Q” Bias........................................................................................................................................................5
Meter Driver Null.........................................................................................................................................5
Zero Set........................................................................................................................................................5
Stereo Interconnection.................................................................................................................................5
T
HEORY OF
O
PERATION
.................................................................................................................................7
Overview ......................................................................................................................................................7
1176 LN Input Section.................................................................................................................................8
Gain Reduction Stage..................................................................................................................................8
LN Circuitry...................................................................................................................................................9
Output Amplifier...........................................................................................................................................9
Gain Reduction Control Circuit..................................................................................................................10
H
ISTORY
.....................................................................................................................................................12