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 173
1 5* … •TT ■+■0 IS {* C 12 C FT .&. ._sLJi 1- £ * n° J- V _}»l_ ~—i r FTWT1 ^ 5i Fig. 147 to 161.—Wiring diagrams showing connections of some standard spark coils. Key: B,to battery; C, to commutator or timer; G, to ground (engine frame); P, to plugs; S, toswitch. 1, 6 terminal standard non-vibrator…
Electrical engineering
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