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Scientific American, Vol. 54, No. 22 (1886) (1886)
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be pressed against the ear, wood carrying the armature, is designed to concentrate with any of the magneto receivers shown in our illus- the sound. Thisinstrument talks, and talks well. Its forms a very fair receiver. tration, and we have an operative telephone line such faults are due only to… … 4. Telephone Transmitter 1. Magneto Telephone made by Alfred G. Holcomb in 1860-61. EARLY TELEPHONES, © 1886 SCIENTIFIC AMERICAN, INCInternet Archive · Public domain (published before 1931). Free to use for anything.
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