Table of Contents
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INSTRUCTION
MANUAL
for
MODEL
250-
DA UNIVERSAL IMPEDANCE
BRIDGE
TABLE OF CONTENTS
I*
Controls
1.1
Circuit Selector
1.2
Multiplier
Switch
1.3
Main
Dial
Assembly
1.4
D-Q
Dial
1.5
Unknown
Terminals
1.6
External
Generator Terminals
1.7
External
D-Q
Terminals
1.8
External Detector
Terminals
1.9
Detector Switch
1.10
Generator Switch
1.11
Galvanometer
1.12
Power
Switch and
AC
Amplifier Gain
1.13
AC
-
DC
Switch and
AC
Generator Gain
1.14
DC
Generator
Voltage Switch
1.15
AC
Generator Tuning
Network
1.16
AC
Detector Tuning
Network
1.17
AC
Null Indicator
1.18
AC
Amplifier Output
Terminals
1.19
Fuse
1.20
Power
Indicator
Lamp
2.
Operating
Instructions
2.
1
What
the
Bridge
Measures
2. 2
Resistors
2.2.1
Measuring
Resistors
2.2.2
Things
to
Watch
Out
For
2.2.3
Measuring
AC
Resistance
(Him
250-DA
10/59
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