Practical wireless telegraphy; a complete text book for students of radio communication (1917)
Bucher, Elmer Eustice, 1885- · New York, Wireless Press, Inc · leaf 312
Fig. 3U—Showing the Cage andthe Top Mast Several Hun-dred Feet from Earth. … Fig. 315—Completed Mast (Guys Not Shown). phase relation between the alternator current and the spark may be varied to the mostadvantageous point, the alternator is built with the armature frame, the machine being of tlierotating field type, mounted in a secondary outside frame, with a track…
Telegraph, Wireless
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