Practical wireless telegraphy; a complete text book for students of radio communication (1917)
Bucher, Elmer Eustice, 1885- · New York, Wireless Press, Inc · leaf 35
zontal and vertical lines intersect, a common line is drawn connecting them, whichresults in the wave-like curve. 33. Determination of Frequency.—The frequency of an alternating cur-rent dynamo is expressed in cycles per second. We see from the previous para-graph that one complete cycle of current… … IN CASE OF 500 CYCLE ALTERNATOR Fig. 22—Sine Curve Showing Rise and Fall of Current during One Complete Cycle. current constitute a complete cycle, the frequency of this generator is said to be 60cycles. The frequency of any alternator may be determined by first counting thenumber of field poles…
Telegraph, Wireless
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