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
l coils are connected between LI and C. If an auxiliary bell be wired in, thetwo sets of coil are connected in series and the post G is used to connect the loops; other-wise the G post is notused unless for ground connection in party wires. Post marked LIcorresponds to post A in fig. 2,923, post C…
Electrical engineering
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