VOLUME I
Reading edition
Fundamental Principles By K. B. Miller and S. G. McMeen [A] Page 11
CHAPTER I—Acoustics—Characteristics of Sound—Loudness—Pitch—Vibration of Diaphragms—Timbre—Human Voice—Human Ear
CHAPTER II—Speech—Magneto Telephones—Loose-Contact Principle—Induction Coils
CHAPTER III—Simple Telephone Circuit—Capacity—Telephone Currents—Audible and Visible Signals
CHAPTER IV—Telephone Lines—Conductors—Inductance—Insulation
Substation Equipment By K. B. Miller and S. G. McMeen Page 63
CHAPTER V—Transmitters—Variable Resistance—Materials—Single and Multiple Electrodes—Solid-Back Transmitter—Types of Transmitters—Electrodes—Packing—Acousticon Transmitter—Switchboard Transmitter
CHAPTER VI—Receivers—Types of Receivers—Operator's Receiver
CHAPTER VII—Primary Cells—Series and Multiple Connections—Types of Primary Cells
CHAPTER VIII—Magneto Signaling Apparatus—Battery Bell—Magneto Bell—Magneto Generator—Armature—Automatic Shunt—Polarized Ringer
CHAPTER IX—Hook Switch
CHAPTER X—Electromagnets—Impedance, Induction, and Repeating Coils
CHAPTER XI—Non-Inductive Resistance Devices—Differentially-Wound Unit
CHAPTER XII—Condensers—Materials
CHAPTER XIII—Current Supply to Transmitters—Local Battery—Common Battery—Diagrams of Common-Battery Systems
CHAPTER XIV—Telephone Sets: Magneto, Series and Bridging, Common-Battery
Party-Line Systems By K. B. Miller and S. G. McMeen Page 227
CHAPTER XV—Non-Selective Party-Line Systems—Series and Bridging—Signal Code
CHAPTER XVI—Selective Party-Line Systems: Polarity, Harmonic, Step-by-Step, and Broken-Line
CHAPTER XVII—Lock-Out Party-Line Systems: Poole, Step-by-Step, and Broken-Line
Protection By K. B. Miller and S. G. McMeen Page 287
CHAPTER XVII—Electrical Hazards
CHAPTER XIX—High Potentials—Air-Gap Arrester—Discharge across Gaps—Types of Arrester—Vacuum Arrester—Strong Currents—Fuses—Sneak Currents—Line Protection—Central-Office and Subscribers' Station Protectors—City Exchange Requirements—Electrolysis
Manual Switchboards By K. B. Miller and S. G. McMeen Page 317
CHAPTER XX—The Telephone Exchange—Subscribers', Trunk, and Toll Lines—Districts—Switchboards
CHAPTER XXI—Simple Magneto Switchboard—Operation—Commercial Types of Drops and Jacks—Manual vs. Automatic Restoration—Switchboard Plugs and Cords—Ringing and Listening Keys—Operator's Telephone Equipment—Circuits of Complete Switchboard—Night-Alarm Circuits—Grounded and Metallic Circuit Line—Cord Circuit—Switchboard Assembly
Review Questions Page 387
Index Page 401