Practical wireless telegraphy; a complete text book for students of radio communication (1917)
Bucher, Elmer Eustice, 1885- · New York, Wireless Press, Inc · leaf 126
Fig. 136—Connections of a Modern Aerial Changeover Switch.It will be evident from the foregoing that during the sending period at a given station, thereceiving tuner is thoroughly disconnected from the antenna and during the receivingperiod the circuit to the field winding of the generator is…
Telegraph, Wireless
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