The standard electrical dictionary; a popular dictionary of words, terms, and phrases, used in the practice of electrical engineering (1897)
Sloane, T. O'Conor (Thomas O'Conor), 1851-1940 · New York, H. W. Henley & co. · leaf 142
th No. 18to 24 A. YV. G. wire to a resistance of y2 ohm; the secondary,with No. 36 wire to a resistance of 80 ohms. The Edison tele-phone induction coil was wound with similar wires to a resistanceof 3 to 4 ohms and of 250 ohms respectively. Coil, Magnetizing. A coil of insulated wire for making… … Fig. 103. Magnetizing Coil. may be quite heavy, 2 or 3 millimeters (.08—.12 inch) thick, and iscemented together with carpenters glue, or with shellac or etherealsolution of gum copal. In use it is passed over the bar a few timeswhile a heavy current is going through it. It is used for magiccircles…
Electricity
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