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 30
vesthe sum total of the effects dueto the action of the coil, the in-tensification of the core, and themagnetic reaction due to thestrengthening of the latter bythe diaphragm, but apparentlyfails to distinguish between them. THE TELEPHONE 2,123 Figs. 2,925 and 2,926 show a magneto set, open and… … UXILIARYBELL LOOPEND5 ^BELL •CoiuS Fig. 2,924.—Diagram showing an improved plan of wiring a bell box used by the New YorkTelephone Co. A three wire cord connects with the three posts marked S, R, and T whichare at one end of bell box. At the other end the line, wires connect to LI and L2 postsand…
Electrical engineering
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