Wireless Telegraphy and Telephony
Forfatter: Alfred P. Morgan
År: 1917
Forlag: The Norman W. Henley Publishing Company
Sted: New York
Udgave: Third Edition, Fully Illustrated
Sider: 33
UDK: 621.396.1 Mor
A practical Treatise on Wireless Telegraphy and Telephony, giving Complete and Detailed Explanations of the Theory and Practice of Modern Radio Apparatus and its Present Day Applications, together with a chapter on the possibilities of its Future Development
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1
TABLE OF CONTENTS
IX
CHAPTER IX
PAGES
The Wireless Telephone; The Difficulties of Wireless Teleph-
ony; A Simple Wireless Telephone; The Effects of
Speech Upon Wireless Telephone Apparatus: The Re-
quirements of Wireless Telephone Apparatus; The Pro-
duction of Undamped Electrical Oscillations; Ihe Poul-
sen Arc; Wireless Telephone Apparatus; The Majorana
Transmitter; The Receiving Apparatus; The Audion;
Transmission of Wireless Telephone Messages . 124-136
CHAPTER X
Remarks; Maxwell’s Theory; Hertz’s Discovery; Electromag-
netic Waves; The Position of Wireless Telegraphy in the
World To-day; The Field for Wireless Telephony; The
Status of the “Amateur”; Wireless of the Future; The
Transmission of Power by Wireless .... 137-148