Hawkins electrical guide ... : questions, answers & illustrations : a progressive course of study for engineers, electricians, students and those desiring to acquire a working knowledge of electricity and its applications ; a practical treatise (1914)
Hawkins, N. (Nehemiah), 1833-1928 · New York : T. Audel & Co. · leaf 202
T3O 03 c > . ft >> c . «-i u ^ rt. ^ Wo Oh^j C ft d WIRELESS TELEGRAPHY 2,293 The De Forest System.—The features of this system arediagrammatically shown in fig. 3,131. In this system, theimperfections of the induction coil, when operated with theordinary interrupters, is avoided by the… … Fig. 3,131.—Diagram of the DeForest system. The transmitting apparatus comprises thealternator AL, the impedance coil O, the telegraph key K, the transformer T, the auto-transformer AT, the condensers CI and C2, the spark gap G, and the antenna A, whichinstead of being directly connected to the…
Electrical engineering
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