Equipment information
Amplifier Research 700A Amplifier
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Model:
700A
Date:
1978
Category:
Group:
Description:
Power Amplifier
Information
The Model 700A Pouer Amplifier is completely solid state and
contains no mechanical circuit breakers or relays.
Even its
aver-tamperature sensor is a solid state device.
Designed for
severe industrial applications, the Model 700A Amplifier is
protected from damage uhich might be caused by excessive l/SUR,
high instantaneous line current, excessive output pouer or
over-temperature operation.
A built-in time delay and zero-
crossing turn-on reduce current inrush to prolong component
life.
Pouer Supply voltage regulation is used to remove noise and
output
fluctuations.
A directional uattmeter and front panel selector
switch provide convenient measurement of the forward pouer from
the Amplifier and reverse pouer reflected by the load.
A
non-linear meter scale allows extremely sensitive tuning of the
load simply by adjusting for minimum reflected pouer.
The Model 700A c o o l i n g 'is provided by self-contained
fans.
Air
is drawn in through filtered inlets to protect the circuitry
from
exposure to excessively dirty environments uhich may be
encountered
in industrial applications.
All sub-assemblies are Plug-In and
can be readily removed for maintenance and repair.
The Model 700A may be purchased initially for lou power
requirements
and when additional power is required another Model 700A and a
hybrid power combiner may be used to provide performance
equivalent
to our Model 140ÖA.
The Model 700A is complete with a built-in 115 VAC pouer supply,
regulators, pouer meter and protection circuitry.
It is normally
supplied in a handsome bench top cabinet uith rack mounting
available as an option.
Manual Type:
Service and User Manual
Pages:
76
Size:
3.32 Mbytes (3485093 Bytes)
Language:
english
Revision:
Manual-ID:
1 0Ü.1 061-502
Date:
1978 03 01
Quality:
Scanned document, reading partly badly, partly not readable.
Upload date:
2016 09 10
MD5:
459b94795664096c78ed4140de2c4ef6
Downloads:
507
Information
GENERAL INFORMATION
1*1
General Description ... · ...
1-1
1.2
Pouer Supplies ... ...
1-1
1.3
Specifications ... ... .
1-1
SECT I ON II:
OPERATING INSTRUCTIONS
2.1
Ge n e r a l ... ...
2.2
Amplifier Operation ... ...
2-1
2-2
SECTION III: THEORY OF OPERATION
3.1
3.2
3.3
3.4
Introduction ... ... * ... .3-1
Amplifier Section ... ... .3— 3
Turn On and Protective logic C i rc ui tr y ... .3-3
Pouer Supply ... ... ..3-4
SECTION IV:
MAINTENANCE
4.1
4.24.34.44.5General Maintenance Information ...
Cover and Sub-Assembly R e m o v a l . . . ... . . .. ... ...
Troubleshooting. ... ...
.Servicing Etched Circuit B o a r d s . ... · ...
4— 1
4-1.
4-2
(
4-3''
SECTION V:
REPLACEABLE PARTS
5*1 Introduction ... 5-1
5.2 Ordering Information ... ... .
5-1
5.3 Nonlisted Parts ... .
5-1
5.4 De si gn a t o r s , ... ...
... 5-2
5.5 Parts Li st s ... ... г5-2
SECTION lli
SCHEMATICS