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Scientific American, Vol. 54, No. 22 (May 1886) (1886)

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An illustration from Scientific American, Vol. 54, No. 22 (May 1886), 1886, leaf 0
, is designed to concentrate one end a wooden disk to be pressed against the ear, the sound. This instrument talks, and talks well. Its with any of the magneto receivers shown in our illus- forms a very fair receiver. faults are due only to wrong proportions. Its arma- tration, and we have an… … 4. Telephone Transmitter 1. Magneto Telephone made hy Alfred G. Holcomb in 1860-61. 2. Magneto Telephone made hy George W. Beardslee, at College Point, N. Y., prior to 1865. 3. Same, inclosed ready for use. niade by Philip Van der Weyde about 1869. 5. Telephone Receiver made by Philip Van der Weyde…

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