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 296
Hughes Electro-magnet. … Fig. 198. Hughes Induction Balance. included in the same circuit. The secondary coils are joined inseries with a telephone and in opposition with each other. The 292 STANDARD ELECTRICAL DICTIONARY. clock is used to produce a sound affecting the microphone. If allis exactly balanced there will be no…
Electricity
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