Download Print this page

Table Of Contents - HP 492A Operating And Service Manual

Traveling-wave
Hide thumbs

Advertisement

Model 492Aj494A
Table of Contents
Lists of Illustrations and Tables
TABLE OF CONTENTS
Section
Page
Section
Page
I
1-1
IV
PRINCIPLES OF OPERATIO (cont'd)
1-1.
1-1
4-1
1-6.
1-2
4-4
1-8.
1-2
· .
4-4
II
2-1
4-5
2-1.
2-1
2-3.
2-1
V
5-1
2-5.
2-1
5-1.
·
5-1
2-8.
Installation
2-1
5-3.
5-1
2-1
5-5.
5-1
5-7.
5-3
III
3-1
5-8.
5-3
3-1.
3-1
5-10.
.
5-3
3-3.
3-1
5-12.
3-6.
3-1
5-3
3-8.
3-1
5-17.
Changing the Frequency Range
3-1
of the 492A or 494A
5-5
5-5
3-3
5-22.
5-5
3-3
5-24.
5-5
3-3
5-26.
5-5
3-6
5-28.
5-5
3-6
·
5-6
5-7
3-6
5-33.
Gain Check.
5-7
3-7
5-36.
5-7
3-9
5-39.
5-7
5-42.
Hum and Spurious Modulation Check· 5-8
)
IV
4-1
4-1.
4-1
VI
.
6-1
4-3.
Magnet Power Supply.
4-1
6-1.
6-1
4-5.
4-1
6-4.
6-1
LIST OF ILLUSTRATIONS AND TABLES
Number
Illustration Title
Page
4-3.
Cutaway View ofaTWT Capsule and Magnet
Showing the Important Elements· . . . 4-3
4-4.
Cutaway View of an Encapsulated TWT· . 4-3
4-5.
Simplified Circuit of a Constant Amplitude,
Variable Slope Sawtooth Generator··
4-5
5-1.
Top View of Models 492A and 494A . ,
5-2
5-2.
Bottom View Looking Towards the Front
Panel of Models 492A and 494A . . .
5-4
5-3.
Rear View of Models 492A and 494A"
5-4
5-4.
Test Setup for Gain, Output Power, and
Noise Figure Performance Checks
5-7
5-5.
Test Setup for Hum and Spurious
Modulation Performance Check . .
5-8
5-6.
Models 492A and 494A Schematic Diagram' 5-9
Number
Illustration Title
Page
1-1.
Model 492A Traveling Wave Amplifier
1-1
1-2.
Traveling Wave Tube Warranty
1-2
3-1.
Operating Controls .
3-0
3-2.
Typical Gain and Power Output
Characteristics
.
3-2
3-3.
Block Diagram of a Circuit used to
Maintain Constant-Level Output Power
from a TWT Amplifier
3-3
3-4.
Block Diagram of an Automatic Gain
Control to Maintain Constant Ampli-
fication from a TWT Amplifier
3-3
3-5.
Typical Plot of Output Voltage vs Grid
Voltage of a Model 492A
3-4
3-6.
Typical Plot of Output Voltage vs Grid
Voltage of a Model 494A.
3-5
3-7.
RF Phase Shift Produced by Helix Mod
3-7
3-8.
Offset Frequency Produced
by
Sawtooth
Modulation of the Helix .
3-7
3-9.
Block Diagram of a Linear (Homodyne)
)
Detection System.
3-8
3-10. Block Diagram of a Circuit to Produce
an FM Signal with a TWT Amplifier
3-8
4-1.
Block Diagram, Models 492A and 494A
4-0
4-2.
TWT and How it Works
.
4-2
00144-2
1-1.
3-1.
5-1.
5-2.
5-3.
6-1.
6-2.
Table Title
Specifications. . . . . .
Maximum Operating Currents for
Models 492A and 494A . . .
Recommended Test Equipment
Tube Replacement List
Troubleshooting Chart . . •
Reference Designation Index
Replaceable Parts· . . . .
1-0
3-1
5-1
5-3
5-6
6-2
6-5
iii

Advertisement

loading

This manual is also suitable for:

494a