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 90
TRANSMITTER 1 … Fig. 3,002.—Installing a magneto set: 6. Connecting ringer and ringer condenser. Whenthe set leaves the factory the ringer is connected for regular bridging telephone service,as here shown, the red wire from the ringer being connected to line 2, the black wrre_fromthe ringer to line 1, and the…
Electrical engineering
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