An edition of Radio Set AN/TRC-7
(1945)
Radio Set AN/TRC-7
by United States War Department
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August 9, 2016 | History
TM 11-617 Radio Set AN/TRC-7, 1945-02-22
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Book Details
Table of Contents
TABLE OF CONTENTS
Paragraph Page
PART ONE. Introduction.
SECTION I. Description of Radio Set AN/TRC-7.
General 1 1
Application 2 1
Technical characteristics 3 3
Communication with other radio sets 4 4
Table of components 5 6
Packaging data 6 10
Receiver-Transmitter RT-53/TRC-7 7 10
Antenna Assembly AS-110/TRC-7 8 11
Antenna AT-59/TRC-7 9 13
Handset H-23( )/U 10 14
Headset HS-30-( ) 11 14
Microphone T-45 12 14
Remote control equipment 13 16
Battery BA-70 14 16
Generator G-3/TRC-7 15 16
II. Installation of Radio Set AN/TRC-7.
Unpacking, uncrating, and 16 17
checking 17 18
Connections and interconnections Receiver-Transmitter RT-53/TRC-7 18 21
Antenna Assembly AS-110/TRC-7 19 21
Antenna AT-59/TRC-7 20 26
SECTION II. Installation of Radio Set AN/TRC-7 (contd).
Handset H-23( )/U, Headset HS-30-( ), and Microphone T-45 21 28
Remote control equipment 22 32
Battery BA-70 23 32
Bias Batteries BA-58 24 32
Crystal Units CR-l/AR 25 33
Generator G-3/TRC-7 26 33
Repacking information 27 36
PART TWO. Operating instructions.
SECTION III. Controls and their use.
Receiver-transmitter panel controls 28 39
IV. Operation.
Siting 29 45
Starting procedure 30 45
Precise operating instructions 31 45
Stopping procedure 32 47
V. Equipment performance check list.
Purpose and use of check list 33 47
Equipment performance check list 34 49
PART THREE. Preventive maintenance.
SECTION VI. Preventive maintenance techniques.
Meaning of preventive maintenance 35 51
Description of preventive maintenance techniques 36 51
Vacuum tubes 37 53
Capacitors 38 54
Resistors 39 54
Bushings and insulators 40 55
SECTION VI. Preventive maintenance techniques (contd).
Relay 41 56
Switches 42 57
Coils 43 58
Rheostats and potentiometers 44 58
Terminal blocks 45 58
Multiple connectors 46 59
Cords and cables 47 59
Meter 48 59
Jacks and plugs 49 60
Generator 50 60
Cabinets, chassis, and mountings 51 61
Handset, headset, and microphone 52 61
Coupling shafts and control knobs 53 62
Gears 54 62
VII. Itemized preventive maintenance.
Introduction 55 62
Common materials needed 56 63
Item 1, exterior of Radio Set AN/TRC-7 57 63
Item 2, antennas 58 64
Item 3, Battery BA-70 59 64
Item 4, generator and cable 60 64
Item 5, handset 61 64
Item 6, headset 62 65
Item 7, microphone 63 65
Item 8, receiver-transmitter 64 65
Preventive maintenance check list 65 66
VIII. Lubrication.
Lubrication 66 67
IX. Special tools.
Alignment Tool TL-314/U 67 67
Tube Puller TL-310/U 68 67
Allen wrench 69 68
Soldering tip 70 68
SECTION X. Moistureproofing and fungiproofing.
Moistureproofing and fungiproofing Radio Set AN/TRC-7 71 68
PART FOUR. Auxiliary equipment.
PART FIVE. Repair instructions.
SECTION XI. Theory of equipment.
Theory of operation 72 69
Receiver section, functioning of parts 73 71
Receiver radio-frequency amplifier stage 74 71
Receiver mixer stage 75 72
Receiver first intermediate-frequency amplifier 76 73
Receiver second intermediate-frequency amplifier 77 74
Receiver third intermediate-frequency amplifier 78 75
Receiver diode detector 79 76
Receiver noise limiter circuit 80 77
Receiver first audio-frequency amplifier stage 81 78
Receiver second audio-frequency amplifier stage 82 78
Receiver crystal oscillator 83 79
Receiver harmonic generator 84 80
Receiver harmonic amplifier 85 81
Transmitter oscillator 86 82
Transmitter first tripler 87 83
Transmitter second tripler 88 84
Transmitter doubler-driver stage 89 85
Transmitter power amplifier 90 86
Antenna system 91 87
Transmitter speech amplifier 92 87
Transmitter modulator 93 88
Power supply circuits 94 89
Meter circuit 95 90
Over-all system functioning 96 92
SECTION XII. Trouble shooting.
General trouble-shooting information 97 93
Test equipment 98 96
Trouble-shooting procedures 99 96
Instrument test methods 100 98
Trouble-shooting charts 101 100
XIII. Repairs.
General 102 107
Handling of tools 103 107
Construction of soldering tip 104 108
Tube checking and replacement 105 108
Testing tubes with Test Set 1-56-( ) 106 108
Battery checking and replacement 107 109
Replacement of CHANNEL SELECTOR switch wafers 108 109
Replacement of jacks 109 109
Replacement of other parts 110 109
Antenna scale 111 111
Rustproofing and repainting 112 111
Unsatisfactory equipment report 113 111
XIV. Alignment and adjustment.
Alignment of receiver section of Receiver-Transmitter RT-53/TRC-7 114 113
Neutralization of transmitter power amplifier 115 114
XV. Presetting.
Transmitter presetting 116 114
Receiver presetting 117 116
APPENDIX.
SECTION XVI. Maintenance parts.
Maintenance parts for Radio Set AN/TRC-7 118 118
XVII. References.
Army regulations 119 133
Maintenance parts 120 133
Technical manuals on auxiliary equipment and test equipment 121 133
Painting, preserving, and lubricating 122 133
Shipping instructions 123 134
Decontamination 124 134
Demolition 125 134
Camouflage 126 134
Other technical publications 127 134
Abbreviations 128 135
Glossary 129 135
LIST OF ILLUSTRATIONS
Fig. No. Title. Page.
1 Radio Set AN/TRC-7 xiv
2 Radio Set AN/TRC-7, simplified block diagram 2
3 Radio Set AN/TRC-7, simplified block diagram with remote control equipment 2
4 Radio Set AN/TRC-7, frequency spectrum chart 4
5 Radio Set AN/TRC-7, over-all illustration, whip antenna and battery in place 5
6 Radio Set AN/TRC-7, with accessories, disassembled 5
7 Radio Set AN/TRC-7, outline dimensional drawing 8
8 Receiver-Transmitter RT-53/TRC-7, with Battery BA-70 attached 9
9 Antenna Assembly AS-110/TRC-7 10
10 Antenna Assembly AS-110/TRC-7, components 11
11 Antenna AT-59/TRC-7 and Antenna Base AB-37/TRC-7 12
12 Handset H-23( )/U 12
13 Headset HS-30-( ) 13
14 Microphone T-45 and Cord CD-318-A 14
15 Remote Control Unit RM-52 and Control Unit RM-53 15
16 Generator G-3/TRC-7, set up for operation 17
17 Radio Set AN/TRC-7, disassembled 19
18 Radio Set AN/TRC-7 20
19 Antenna installation, stake layout 21
20 Antenna Assembly AS-112/TRC-7 22
21 Antenna Assembly AS-110/TRC-7, erection by two men 24
22 Antenna Assembly AS-110/TRC-7, erection by two men 24
23 Antenna Assembly AS-110/TRC-7, erection by one man 25
24 Antenna Assembly AS-110/TRC-7, erection by one man 26
25 Antenna Assembly AS-110/TRC-7, installed 27
26 Headset HS-30-( ), as worn by operator 28
27 Microphone T-45, as worn by operator 29
28 Cord CD-318-A 30
29 Battery BA-70, top view 30
30 Radio Set AN/TRC-7, showing battery plug and receptacle 31
31 Bag CW-47/TRC-7 33
32 Bag CW-48/TRC-7 34
33 Bag CW-49/TRC-7 35
34 Roll CW-50/TRC-7, with Generator G-3/TRC-7 and accessories 37
35 Roll CW-50/TRC-7, with Antenna Assembly AS-110/TRC-7 38
36 Radio Set AN/TRC-7, front panel 40
37 POWER VOLUME control 41
38 POWER switch 41
39 CHANNEL SELECTOR switch 42
40 MONITOR VOLUME control 42
41 Receiver-Transmitter RT-53/TRC-7, front panel, showing reference symbols 43
42 Siting 44
43 Antenna AT-59/TRC-7, adjustment for proper frequency 46
44 Alignment Tool TL-314/U 67
45 Tube Puller TL-310/U 67
46 Allen wrench 68
47 Soldering tip 68
48 Transmitter, simplified block diagram 69
49 Receiver, simplified block diagram 70
50 Receiver r-f amplifier 72
51 Receiver mixer 73
52 Receiver first i-f amplifier 74
53 Receiver second i-f amplifier 75
54 Receiver third i-f amplifier 75
55 Receiver diode detector and first audio amplifier 76
56 Receiver noise limiter 77
57 Receiver second a-f amplifier 78
58 Receiver oscillator and harmonic generator 80
59 Receiver harmonic amplifier 81
60 Transmitter oscillator and speech amplifier 82
61 Transmitter first tripler 83
62 Transmitter second tripler 84
63 Transmitter doubler 85
64 Transmitter power amplifier 86
65 Transmitter modulator 88
66 Control and power supply circuits 90
67 Radio Set AN/TRC-7, complete block diagram 91
68 Resistance chart 104
69 Voltage chart 105
70 Tube base chart 106
71 Waterseal jack assembly 109
72 Antenna scale 110
73 Unsatisfactory equipment report 112
74 Radio Set AN/TRC-7, right side of set 136
75 Radio Set AN/TRC-7, chassis top 142
76 Radio Set AN/TRC-7, chassis bottom 138
77 Radio Set AN/TRC-7, chassis right side 139
78 Radio Set AN/TRC-7, chassis oblique right side view 140
79 Radio Set AN/TRC-7, chassis left side 141
80 Radio Set AN/TRC-7, chassis tuning controls 142
81 Location of resistors 143
82 Location of capacitors 144
83 Location of coils and chokes 145
84 Resistor color codes 146
85 Capacitor color codes 147
86 Battery cable plug 148
87 Generator G-3/TRC-7, wiring diagram 149
88 Antenna Assembly AS-110/TRC-7, assembly of components 151
89 Radio Set AN/TRC-7, schematic diagram 153
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