Practical wireless telegraphy; a complete text book for students of radio communication (1917)
Bucher, Elmer Eustice, 1885- · New York, Wireless Press, Inc · leaf 33
aratus known as the inductioncoil, in which the circuit of P is interrupted from thirty to one hundred times per second.Then if winding S is given a large number of turns and its terminals are separated by aspace of several inches, the voltage may be so great as to jump the gap in the form of… … Fig. 20—Fundamental Diagram of Simple Alternator. 32. The Dynamo.—We may briefly define the dynamo as a machine forconverting mechanical energy into electrical energy by the principle of electro-magnetic induction. But unlike the simple battery or storage cell the dynamomay generate either direct…
Telegraph, Wireless
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