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Scientific American, Vol. 90, No. 13 (1904) (1904)
leaf 4
in front, is driven by without it, so that. when used on short lines whose an eccentric beside the flywheel. Variable jump-spark capacity is small, it is necessary to bring these lines The Transmitter and the Receiver. ignition is used, the spark being advanced or retarded up to the requisite… … dried, and heated, would leave Bis connected with the posi- tive pole of a battery whose a residuum of metallic gold. © 1904 SCIENTIFIC AMERICAN, INCInternet Archive · Public domain (published before 1931). Free to use for anything.
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