The “perfected” phonograph
In Thomas Alva Edison’s update on “The Perfected Phonograph” (1888), he reported that, instead of foil sheets, “wax cylinders can be sent through the mail in little boxes which I have prepared for that purpose, and then put upon another phonograph at a distant point, to be listened to by a friend or business correspondent” (647).
Edison, Thomas Alva. “The Perfected Phonograph.” The North American Review 146 (1888): 641-650. JSTOR. Web. 8 Nov. 2019.
Image: Illustration from “Patent Application, Thomas Alva Edison, April 17th, 1890.” _Edison Papers Digital Edition_. Web. 7 Nov. 2019.
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