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 67
TILTED STRAIGHTSETTING CONDENSER … CONDENSER Fig. 3,866.—Arc setting for alternating current arc with cored carbons. When cored carbonsare used, the crater will form in the end of the core, keeping in the center of the carbonpencil, and the vapor of the soft core will hold the arc between alternations. Withoutcored carbons, an…
Electrical engineering
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