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HX50
Hammarlund HX50 Manuals
Manuals and User Guides for Hammarlund HX50. We have
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Hammarlund HX50 manuals available for free PDF download: Service Manual, Technical Description And Operating Instructions
Hammarlund HX50 Service Manual (52 pages)
HF Transmitter
Brand:
Hammarlund
| Category:
Transmitter
| Size: 2 MB
Table of Contents
Introduction
2
Description
2
Scope of Operation
2
T.V.I. Suppression
2
Installation
4
Unpacking
4
Location
4
Power Source
4
RF Output Connector
5
Receiver Antenna Connector
5
Station Control Terminal Board
5
Accessory Relay Contacts
5
Push-To-Talk
6
External VFO Connector
6
Connection Points at Rear of Chassis
7
Typical Station Control
8
Operating Controls
10
Function
10
Crystal - VFO
10
Meter
10
Band Selector
11
Frequency
11
AF Level
11
RF Drive
11
PA Load
12
VOX Sensitivity
12
VOX Delay
12
Anti-Trip Sensitivity
12
Tuning Procedure
14
Initial Control Settings
14
Approximate Settings
14
CW Tuning
15
SSB Tuning
16
Basic Operation Theory
18
Basic Operating Principles
18
General Description
18
80 Meter Operation
18
Transmitter/Exciter Block Diagram
19
CW Operation
20
AM Operation
20
Crystal Operation
20
Operation with External VFO
20
Heterodyne Frequencies
21
Crystal Frequencies
21
Service Data
22
Chassis Removal
22
Tube and Dial Lamp Replacement
22
Top View of Chassis, Primary Components
23
Bottom View of Chassis, Primary Compartments
24
Troubleshooting Chart
25
Restringing the Dial Pointer and VFO Drive Mechanism
26
Restringing the Band Selector Mechanism
26
Restringing the VFO Drive Mechanism
28
Alignment Procedure
29
Equipment Required
29
Bias Adjustment
30
Alignment of Carrier Oscillator Stage
30
Heterodyne Oscillator Alignment Chart
32
RF Alignment of the First Mixer Stage
33
VFO Calibration Alignment
35
Neutralization of the Final Amplifier
36
Final Alignment Procedure
36
Bottom View of Plate R F Coil Assembly
41
R.F. Coil Position VS Schematic Designation
41
Parts List
42
Miscellaneous Parts
47
Voltage Chart
48
Resistance Chart
49
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Hammarlund HX50 Technical Description And Operating Instructions (45 pages)
Brand:
Hammarlund
| Category:
Transmitter
| Size: 23 MB
Table of Contents
Installation
5
Fsk Operation
9
Audio Amplifier
11
Fi Rst MI Xer
12
Automatic Level Control (Alc)
14
Power Supply
15
Tube Complement
15
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Hammarlund Categories
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