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I
TABLE
OF CONTENTS
r
Section
Page
CHARACTERISTICS
1-1
1:1
Introduction
1-1
1.2
Specifications
1-1
II
INITIAL
CHECKS
11-1
2.1
Introduction
11·1
2.2
Equipment Needed
11·1
2.3
Procedure
11-1
III
OPERATING
INSTRUCTIONS
111-1
3.1
I
ntrodu
cti on
111-1
3.2
Noise and Source Resistance
111-1
3.3
Grounding
111-2
3.4 Signal Voltage and Gain
3.5
Dc Zero Adjustment
111-2
3.6
Overload Fast Recovery
111-3
3.7
Low-Pass/High·Pass Filters
111-3
3.8
Single-Ended/Differential Operation
111-3
3.9
Common-Mode Rejection
and
Dc Zero Adjustments
111-4
3.10
Maximum
Input
Signal Consistent
with
Linear Operation
111-4
3.11 Battery Operation, Test,
and
Charging
111·5
3.12
Rack Mounting
111-5
3.13
Using a Signal
Input
Transformer
111·6
3.14
Use
of
the Model 113 in Bio-Medical Applications
111-12
,...,..
IV
.
CIRCUIT
DESCRIPTION
IV-l
4.'
Block
Diagram Discussion
IV-l
4.1A
Input
Coupling Circuit IV-1
4.1B Ground·Loop Suppression
IV-1
4.1C
Gain Determination
IV-1
4.10
Rolloff
Filter
Circuit
IV-'
4.1
E Overload Fast-Recovery
Circuit
IV-2
4.1
F Power Supply
IV-2
4.2
Circuit
Descriptions
IV-2
4.2A
Differential Preamplifier (A
1)
IV-2
4.2B
Output
Amplifier
(A2)
IV-3
4.2C
Power Supply
Circuit
IV-3
4.2D
Battery Test
Circuit
IV-3
V
ALIGNMENT
PROCEDURE
V-l
5.1
Introduction
V-l
5.2
Preliminary
V·l
5.3
Equipment Needed
V·1
5.4
A2
FET
Gate Source Zero Adj.
V·1
5.5
Common-Mode Rejection Adj.
V-l
5.6
Gain Calibration
V-'
5.7
Low
Frequency
Rolloff
Compensation
V-2
5.8
High Frequency
Rolloff
Compensation
V·2
5.9
Battery Test Calibrate
V-2
VI
TROUB
LESHOOTI
NG
VI-l
6.1
Introduction
VI-l
6.2
Procedure
VI·'
,..
6.3
Printed Circuit Soldering
VI·l
\,,~
VII
SCHEMATICS
V
11-'
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