Practical wireless telegraphy; a complete text book for students of radio communication (1917)
Bucher, Elmer Eustice, 1885- · New York, Wireless Press, Inc · leaf 311
Fig. 312—Showing Workmens CageWhich is Carried to the TopDuring the Process of Erection. … Fig. 313—A Tubular Mast inEarly Stages of Construction. Wave Transmitters.—A description will now be given MARCONI TRANSOCEANIC RADIO TELEGRAPHY. 301 of certain apparatus of the radio-frequency circuits of the high power transmitting stationsemploying apparatus for the production of damped waves.…
Telegraph, Wireless
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