A dictionary of electrical words, terms and phrases (1898)
Houston, Edwin J. (Edwin James), 1847-1914 · New York, The W. J. Johnston company · leaf 405
oduced by thephonograph. (See Phonograph) Phonograph.—An apparatus for the re-production of articulate speech, or of sounds of any character, at any indefinite time aftertheir occurrence, and for any number of times.In Edisons phonograph the voice of the-speaker, received by an elastic diaphragm of… … Fig. 422. the form shown in Fig. 422, the motion is by hand.In a later improved form the cylinder is driven bymeans of an electric motor or by clockwork. In order to reproduce the speech or othersounds the phonogram record is placed on thesurface of a cylinder similar to that on which itwas…
Electricity · Electrical engineering
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