Practical wireless telegraphy; a complete text book for students of radio communication (1917)
Bucher, Elmer Eustice, 1885- · New York, Wireless Press, Inc · leaf 312
c type, and is directlyconnected to the shaft of the alternator.The foundation upon which it rests is asolid block of concrete weighing aboutseven tons, supported by piles of insulat-ing compound in such a manner that theframework of the discharger is well pro-tected. The coupling for the… … Fig. 3U—Showing the Cage andthe Top Mast Several Hun-dred Feet from Earth.
Telegraph, Wireless
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