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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WIRELESS TELEGRAPHY
59
formed at the wire, insulating it from the liquid and thus
shutting off the battery current from the telephone re-
ceivers. However, upon the arrival of any electric waves
BATTERY
pIG 73.—Electrolytic detector in circuit.
and consequent high frequency oscillations the latter de-
stroy the bubbles clustering around the little wire and per-
mit the current to flow. Upon the cessation of the lg
pIG 74—Potentiometer.
frequency currents the bubbles immediately form again,
only to become broken down by each tram of oscillations
produced in the aerial. The intermittent currents can be
detected by a buzz in the telephone receivers.