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 84
ing key and place tipof either plug of that pair of cord on firstone binding post and then on another ofthe receivers, at the same time shakingthe cords. The trouble is generally lo-cated at the cord tips or connections. THE TELEPHONE 2,177 55. Transmitter open. 56. Primary coil of operators set…
Electrical engineering
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![An illustration from Telephones and telegraphs: 1902 : [and Municipal electric fire alarm and police patrol systems] (1906)](https://img.insideoutlibrary.com/img/200/ia-cu31924022817674-46-8.webp)
