Abstract
I EXPECT that broadcasters would find that a definite generator of E.M.F. would give cleaner articulation than is probable with a transmitter depending on random variation of resistance. In other words that one of those telegraphic devices which I described long ago (Proc. Inst. E.E., vol. 27, p. 838, Dec. 1898), consisting of a light stiff coil of fine wire suspended elastically in an annular magnetic field, would reproduce speech and music better than a microphone. The fluctuations of the induced current in such an instrument are not capricious, and apart from stimulation it is silent; always provided that the exciting magnetic field is kept steady—a condition likely to be assisted by saturation of the iron magnet core, or by use of a sufficiently strong permanent magnet.
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LODGE, O. Broadcasting Transmitter. Nature 111, 13 (1923). https://doi.org/10.1038/111013a0
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DOI: https://doi.org/10.1038/111013a0
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