Letters of a Radio-Engineer to His Son By: John Mills (1880-)
First Page: [Transcriber's Note: An underscore character " " is used around text to signify italics in the original text, as illustrated. It also is used to signify a subscript, used frequently in technical descriptions. For example E {C} would have been originally typeset as a capital E followed by a smaller C subscript, and both would have been in an italic typeface.] [Illustration: Pl. I. One of the Lines of Towers at Radio Central (Courtesy of Radio Corporation of America).] LETTERS OF A RADIO ENGINEER TO HIS SON BY JOHN MILLS Engineering Department, Western Electric Company, Inc., Author of "Radio Communication," "The Realities of Modern Science," and "Within the Atom" NEW YORK HARCOURT, BRACE AND COMPANY COPYRIGHT, 1922, BY HARCOURT, BRACE AND COMPANY, INC. PRINTED IN THE U. S. A. BY THE QUINN & BODEN COMPANY RAHWAY, N. J. TO J. M., Jr. CONTENTS 1 Electricity and Matter 3 2 Why a Copper Wire Will Conduct Electricity 9 3 How a Battery Works 16 4 The Batteries in Your Radio Set 27 5 Getting Electrons from a Heated Wire 34 6 The Audion 40 7 How to Measure an Electron Stream 48 8 Electron Moving Forces 57 9 The Audion Characteristic 66 10 Condensers and Coils 77 11 A "C W" Transmitter 86 12 Inductance and Capacity 96 13 Tuning 112 14 Why and How to Use a Detector 124 15 Radio Telephony 140 16 The Human Voice 152 17 Grid Batteries and Grid Condensers for Detectors 165 18 Amplifiers and the Regenerative Circuit 176 19 The Audion Amplifier and Its Connections 187 20 Telephone Receivers and Other Electromagnetic Devices 199 21 Your Receiving Set and How to Experiment 211 22 High Powered Radio Telephone Transmitters 230 23 Amplification at Intermediate Frequencies 242 24 By Wire and by Radio 251 Index 263 LIST OF PLATES I One of the Lines of Towers at Radio Central Frontispiece II Bird's Eye View of Radio Central 10 III Dry Battery for Use in Audion Circuits, and also Storage Battery 27 IV Radiotron 42 V Variometer and Variable Condenser of the General Radio Company. Voltmeter and Ammeter of the Weston Instrument Company 91 VI Low Power Transmitting Tube, U V 202 106 VII Photographs of Vibrating Strings 155 VIII To Illustrate the Mechanism for the Production of the Human Voice 170 IX Western Electric Loud Speaking Receiver. Crystal Detector Set of the General Electric Co. Audibility Meter of General Radio Co. 203 X Audio Frequency Transformer and Banked Wound Coil 218 XI Broadcasting Equipment, Developed by the American Telephone and Telegraph Company and the Western Electric Company 235 XII Broadcasting Station of the American Telephone and Telegraph Company on the Roof of the Walker Lispenard Bldg... Continue reading book >>

Letters of a Radio-Engineer to His Son By: John Mills (1880-)

First Page:

[Transcriber's Note: An underscore character " " is used around text to signify italics in the original text, as illustrated. It also is used to signify a subscript, used frequently in technical descriptions. For example E {C} would have been originally typeset as a capital E followed by a smaller C subscript, and both would have been in an italic typeface.]

[Illustration: Pl. I. One of the Lines of Towers at Radio Central (Courtesy of Radio Corporation of America).]

LETTERS OF A RADIO ENGINEER TO HIS SON

JOHN MILLS

Engineering Department, Western Electric Company, Inc.,

Author of "Radio Communication," "The Realities of Modern Science," and "Within the Atom"

NEW YORK

HARCOURT, BRACE AND COMPANY

HARCOURT, BRACE AND COMPANY, INC.

PRINTED IN THE U. S. A. BY

THE QUINN & BODEN COMPANY

RAHWAY, N. J.

J. M., Jr.

CONTENTS

1 Electricity and Matter 3

2 Why a Copper Wire Will Conduct Electricity 9

3 How a Battery Works 16

4 The Batteries in Your Radio Set 27

5 Getting Electrons from a Heated Wire 34

6 The Audion 40

7 How to Measure an Electron Stream 48

8 Electron Moving Forces 57

9 The Audion Characteristic 66

10 Condensers and Coils 77

11 A "C W" Transmitter 86

12 Inductance and Capacity 96

13 Tuning 112

14 Why and How to Use a Detector 124

15 Radio Telephony 140

16 The Human Voice 152

17 Grid Batteries and Grid Condensers for Detectors 165

18 Amplifiers and the Regenerative Circuit 176

19 The Audion Amplifier and Its Connections 187

20 Telephone Receivers and Other Electromagnetic Devices 199

21 Your Receiving Set and How to Experiment 211

22 High Powered Radio Telephone Transmitters 230

23 Amplification at Intermediate Frequencies 242

24 By Wire and by Radio 251

Index 263

LIST OF PLATES

I One of the Lines of Towers at Radio Central Frontispiece

II Bird's Eye View of Radio Central 10

III Dry Battery for Use in Audion Circuits, and also Storage Battery 27

IV Radiotron 42

V Variometer and Variable Condenser of the General Radio Company. Voltmeter and Ammeter of the Weston Instrument Company 91

VI Low Power Transmitting Tube, U V 202 106

VII Photographs of Vibrating Strings 155

VIII To Illustrate the Mechanism for the Production of the Human Voice 170

IX Western Electric Loud Speaking Receiver. Crystal Detector Set of the General Electric Co. Audibility Meter of General Radio Co. 203

X Audio Frequency Transformer and Banked Wound Coil 218

XI Broadcasting Equipment, Developed by the American Telephone and Telegraph Company and the Western Electric Company 235

XII Broadcasting Station of the American Telephone and Telegraph Company on the Roof of the Walker Lispenard Bldg... Continue reading book >>

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