Practical wireless telegraphy; a complete text book for students of radio communication (1917)
Bucher, Elmer Eustice, 1885- · New York, Wireless Press, Inc · leaf 119
enthey are drawn completely apart. If the variometer is connected in theaerial system as in Fig. 124, and its self-inductance gradually increased, the mutualinduction between the open and closedcircuits will be increased and therefore thecoupling. To be efficient and to have a minimum resistance,… … Fig. 123- -Showing Fundamental Principle of the Vario-meter. APPLIANCES FOR A RADIO TRANSMITTER. 109 affords a conductor at maximum con-ductivity for high frequency currents.Oscillation transformers may havefixed values of inductance for both theprimary and secondary windings as inFig. 12S. In one…
Telegraph, Wireless
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