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 232
stablish a Small Station.—The necessaryapparatus required for a small wireless telegraph station is asfollows: WIRELESS TELEGRAPHY 2,323 Porcelain or corrugated composition insulators, which may vary in size. Aerial wire, which may be No. 14 gauge aluminum. Switch, SPDTorDPSTorDPDT. Ground clamp,…
Electrical engineering
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