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HP 492A Operating And Service Manual

Traveling-wave

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Table of Contents

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Table of Contents

4
Table of Contents
6
Description
6
General Information
7
Instrument Identification
7
Traveling Wave Tube Warranty
8
Installation
8
Mechanical Inspection
8
Power Cable
8
Power Requirements
8
Repackaging for Shipment
10
Bandwidth Considerations
10
Helix Control
10
Introduction
10
Operating Instructions
10
Preliminary Operating Procedure
10
Saturation Power Output
12
Amplitude Modulation
12
Buffer Amplifications
12
Constant Gain or Constant Output
- 12
  Amplification
15
Limited Phase Modulation
15
Pulse Modulation
15
Unlimited Phase Modulation and Frequency Shifting
16
Homodyne Detection
18
Frequency Modulation
20
Principles of Operation
- 20
  Introduction
- 20
  Regulated Power Supply
- 20
  Traveling Wave Tube
- 23
  Grid Modulation
- 23
  Helix Modulation
- 24
  Constant-Amplitude, Linear Sawtooth Generator
- 26
  Maintenance
- 26
  Introduction
- 26
  Cleaning the Air Filter
- 26
  Test Equipment
- 28
  Repair
- 28
  Cabinet Removal
- 28
  Tube Replacement
- 28
  Traveling Wave Tube Capsule
  - 28
    Replacement
- 30
  Adjustments
- 30
  Excessive Helix Current
  - 30
    Chassis Helix Control
- 30
  Anode Voltage Control
- 30
  Regulated Power Supply
- 31
  Troubleshooting
- 32
  Performance Checks
- 32
  Output Power Check
- 32
  Noise Figure Check
35
Replaceable Parts
- 35
  Introduction
- 35
  Ordering Information

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Related Products for HP 492A

This manual is also suitable for:

494a