Radio reception, a simple and complete explanation of the principles of radio telephony, and a full exposition of the successful methods of radio reception, with special reference to practical tuning and to radio-and audio-frequency amplifications

CONTENTS CHAPTER PAGE Foreword iii I. — Elements of Electricity and Magnetism 3 II. — Waves and Wave Action 23 III. — Crystal and Vacuum Tube Detectors 46 IV. — Receivers and Loud Speakers 67 V. — Condensers and Resistances 75 VI. — Tuning and Tuning Apparatus 88 VII. — Amplifying Circuits 114 VIII. — Antenna and Ground 128 IX. — Batteries 145 X. — Miscellaneous Apparatus 152 XI. — Don'ts 169 APPENDIX I. — Radio Formulae 177 II. — Calculation of Tuning Apparatus 187 III. — Hook-up Diagram 208 Index of Hook-up Diagrams 231 General Index 235 TABLES I. — Wavelengths and Frequencies 45 II. — Dielectric Constants 184 III. — Honeycomb Coil Values 185 IV. — Inductance of Coils 186 V. — Antenna Characteristics 4-strand L 199 VI. — Antenna Characteristics 4-strand T 200 VII. — Antenna Characteristics Single Wire L 201 VIII. — Antenna Characteristics Single Wire T 202 IX. — Correction Factor 203 X. — Turns Per Inch of Copper Wire 204 XI. — Wire Diameters 205 XII. — Wavelength Characteristics 206-207 Digitized by Google.