The standard electrical dictionary : a popular encyclopaedia of words and terms used in the practice of electrical engineering (1898)
Sloane, T. O'Conor (Thomas O'Conor), 1851-1940 · London : Crosby Lockwood and Son · leaf 296
\^\*S«M«!!S«>SSSSS«^\«5^^\^N^\«^^ >\\m\\\mm\-\\m\\\mm>wiw^\^^ … Fig. 198. HuGHEis 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…
Electricity
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