A dictionary of electrical words, terms and phrases (1896)
Houston, Edwin J. (Edwin James), 1847-1914 · New York, The W.J. Johnston company · leaf 408
e ap-paratus is shown in Fig. 425, as arranged for thereproduction of speech. In Mr. Berliners apparatus, the record surfaceis impressed by a point attached to the trans-mitting diaphragm, in a direction parallel to therecord surface, and not, as in the instrument ofMr. Edison, in a direction at… … Fig. 425. Berliners Gramophone. with the quality of the reproduced sounds. Sincethe resistance to indentation, or vertical cutting,increases more rapidly than the increase in theamplitude of vibration of the cutting point, itfollows that the louder the sounds recorded by thephonograph or…
Electricity · Electrical engineering
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![An illustration from [Graphophone patents] (1878)](https://img.insideoutlibrary.com/img/200/ia-graphophonepaten07unit-1095-687.webp)
