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 570
e, Kellogg and others indicates that this is an effectual method of treatment.No special wiring is required; all that is necessary is to connect to the electric light socket. 3,224 HAWKINS ELECTRICITY They consist of suitably shaped platinum wires which requiredifferent amounts of electric energy… … Fig. 4,681.—Mcintosh universal cautery transformer, for either alternating or direct current.It consists of an open core transformer, in appearance like an induction coil, mountedon a finely finished black enameled slate base and fitted in a highly polished, quartersawed golden oak case, measuring…
Electrical engineering
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