A HISTORY OF EDISON'S WEST ORANGE LABORATORY 1887-1931

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236-242. devised various comparison tests and free trials Edison disc machines. The Tone Tests were one many promotions sell the machine its superior sound. Unfortunately, perfect recreation failed impress the many customers who were looking for the largest record library.2 little stage craft involved convincing the audience that the machine could perfectly mimic the human voice, yet Edison did prove his point that the diamond disc was the ultimate sound . . 2 reproduction. 1922 was busy working 3 out new ideas for demonstrations and sales promotions. Here another example Edison's reliance on technical features the detriment the commercial realities of the phonograph business. NOTES 1) TAE annotation Amusement Phonograph Committee minutes, 17 Jan 1913. 2) Frow, Edison Diamond Discs, pp. TAE Inc. 3) Meadowcroft Mallory, May 1922, box, bio M. Free trials the new disc machines were offered prospective customers the belief that one listen the sound would make the sale. Edison devoted more time marketing the 1920s— after he had solved the technical problems