Radio Sets SCR-281-A, -B, And -D
Publisher: U.S. G.P.O.
Published: 1945
Place of publication: Washington, D.C., USA
Language: eng
Description: TM 11-244 Radio Sets SCR-281-A, -B, And -D, 1945-04-28
Table of contents: title: CONTENTS; title: PART ONE. INTRODUCTION.; title: Paragraph; title: Section I. Description of Radio Set SCR-281-(*).; title: Purpose 1; title: Application 2; title: Technical characteristics 3; title: Communication with other radio sets 4; title: Component parts      5; title: Shipping weights and dimensions of packed sets 6; title: Description of major components  7; title: Differences in models 8; title: II. Installation. Unpacking new equipment. 9 9; title: Mounting 10 9; title: Antenna and ground connections 11 9; title: Shipboard installation 12 10; title: Power supply 13 10; title: PART TWO. OPERATING INSTRUCTIONS.; title: Section III. Controls and their use.; title: Description 14 12; title: IV. Operation. Starting procedure 15 13; title: Receiver operation 16 14; title: Transmitter operation 17 14; title: Stopping procedure 18 14; title: General operating instructions 19 15; title: V. Equipment performance check list.; title: Purpose and use of check list 20 IS; title: Equipment performance check list 21 17; title: PART THREE. PREVENTIVE MAINTENANCE.; title: Section VI. Preventive maintenance techniques.; title: Meaning of preventive maintenance 22 18; title: Description of preventive maintenance techniques.   23 18; title: Vacuum tubes 24 21; title: Capacitors 25 22; title: Resistors 26 23; title: Fuses  27 23; title: Bushings and insulators 28 24; title: Relays 29  25; title: Switches     30 25; title: Potentiometers 31 26; title: Transformers and Chokes 32 26; title: Terminal strips 33 27; title: Meters 34 27; title: Cords and cables 35 27; title: Plugs 36 28; title: Pilot lights 37 28; title: Multiple connectors 38 28; title: Rotary shafts 39 29; title: Knobs and controls 40 29; title: Cabinets, chassis, and mountings 41 29; title: Antennas 42 29; title: Inductors 43 A 30; title: VII. Itemized preventive maintenance.; title: Introduction 44 30; title: Common materials needed 45 30; title: Item 1, exterior of Radio Receiver and Transmitter BC-441-(*) 46 31; title: Item 2, cords and cables 47 31; title: Item 3, receiver and transmitter unit 48 31; title: Item 4, power supply 49 31; title: Item 5, Antenna Tuning Unit BC-619-A 50 32; title: Item 6, antenna 51 32; title: Preventive maintenance check list 52 32; title: VIII. Lubrication.; title: Radio Set SCR-281-(*) 53 33; title: Antenna Tuning Unit BC-619-A 54 33; title: IX. Moistureproofing and fungiproofing.; title: General 55 33; title: Treatment 56 33; title: Radio Set SCR-281-(*) 57 34; title: Antenna Tuning Unit BC-619-A 58 38; title: Moistureproofing and fungiproofing after repairs 59 39; title: PART FOUR. AUXILIARY EQUIPMENT.; title: Section X. Antenna Tuning Unit BC-619-A.; title: Description 60 40; title: Installation 61 42; title: Adjustment 62 45; title: Special antennas 63 47; title: PART FIVE. REPAIR INSTRUCTIONS.; title: Section XI. Theory of equipment.; title: Treatment of theory 64 48; title: Condensed theory of operation 65 48; title: Cross-reference chart 66 50; title: Radio-frequency amplifier 67 50; title: Mixer stage 68 52; title: High-frequency oscillator 69 52; title: Intermediate-frequency amplifier. 70 53; title: Detector, automatic volume control, and audio amplifier 71 53; title: Transmitter crystal oscillator  73 54; title: Transmitter power amplifier  74 54; title: Modulator  75 56; title: Power supply  76 56; title: Control circuits  77 58; title: Antenna Tuning Unit BC-619-A  78 58; title: XII. Trouble shooting. General trouble-shooting information  79 58; title: Trouble-shooting procedures      80 61; title: Instrument test methods  81 62; title: Signal tracing and substitution  82 62; title: Localizing trouble in Radio Set SCR-281-(*)    83 71; title: XIII. Repairs. Replacement of parts  84 72; title: Rustproofing and repainting  85 72; title: Unsatisfactory equipment report  86 72; title: XIV. Alignment and adjustment. Receiver alignment  87 74; title: Transmitter alignment  88 76; title: XV. Presetting.; title: Receiver presetting  89 76; title: Transmitter presetting  90 76; title: APPENDIX 1.; title: MAINTENANCE PARTS 79; title: II. REFERENCES 85