Practical wireless telegraphy; a complete text book for students of radio communication (1917)
Bucher, Elmer Eustice, 1885- · New York, Wireless Press, Inc · leaf 69
ntrol of the voltage and the frequency as does the motor generatorand, therefore, it operates at a disadvantage. The circuit of the dynamotor is shown in Fig. 70. Here the armature coils for theproduction of alternating current have no connection with the coils for direct current.The two windings… … xflMMM^ ARMATURE ^ u ^ ■ njMnjw^ F-2 110 VOLT O.C Fig. 71—Cutler Hammer Starting Box Connected to a Simple Shunt Wound Motor. A small number of either of the foregoing types of machines are used by the MarcomWireless Telegraph Company of America. The rotary converter is very popular abroad. 55. The…
Telegraph, Wireless
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