Gage, Alfred P. (Alfred Payson), 1836-1903 · Boston, London, Ginn · leaf 626
ents induced by thefluctuating primary current traverse the line wire and generatesonorous vibrations in the disk of the receiver in the samemanner as in the original telephone. Fig. 489 represents the entire telephonic apparatus requiredat any single station. The box A contains a small…
Physics
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