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Scientific American, Vol. 44, No. 22 (May 1881) (1881)

leaf 6

An illustration from Scientific American, Vol. 44, No. 22 (May 1881), 1881, leaf 6
dia, and other parts of the world, In Fig. 3 the receiver is a thermopile connected with a and provided with a series of transverse or longitudinal sometimes at great expense, a single half pound of a certain receiving telephone. The heat and light thrown by the spring slats, upon which blocks… … mo-electric currents corresponding in time moisture, and which will serve to preserve MAGNETIC THERMOPHONE WITH MANOMETRIC FLAME TRANSMITTER, and strength with the sound waves at the their aroma or other desirable qualities for a transmitter, the magneto-telephone, E, being long time, has been…

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