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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 383

An illustration from The standard electrical dictionary; a popular dictionary of words, terms, and phrases, used in the practice of electrical engineering, 1897, leaf 383 — telephone.A microphone is placed close to the diaphragm of a telephone.The slight sound waves emitted by the telephone affect the micro-phone and are repeated in its circuit. The microphone circuitincludes a local battery and telephone. Microtasimeter. An apparatus for indicating minute changesin… … ssA-W Fig. 243. MlCROTASIMETER. length either by heat or by moisture, is held pressing against thebutton. A slight change in length of the strip varies the resistance STANDARD ELECTRICAL DICTIONARY. 379 of the button and hence affects the galvanometer. In this wayexceedingly slight changes in heat…

Electricity

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