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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132
WIRELESS TELEGRAPHY
in an atmosphere of coal gas or hydrogen. By surround-
ing the arc with a powerful magnetic field, its resistance is
greatly increased and the voltage raised.
Fig. 147.—Poulsen wireless telephone equipment.
The condenser shunted around the arc usually consists
of a number of metal plates, placed above one another in a
tank of insulating oil. The inductance is simply a single
helix or bare wire.