Signalling through space without wires : being a description of the work of Hertz & his successors (1900)
Lodge, Oliver, Sir, 1851-1940, Hertz, Heinrich, 1857-1894 · London : "The Electrician" Printing and Publishing Company, Limited · leaf 36
ect cohesion having been graduallyestablished, and a mechanical tap back is desirable to restoreit to its original condition. If all the signals received were precisely of the samestrength, I doubt if these superposed crimples of resistancewould occur; but signals depending on quality of… … SZEO^ZZZZZZZTZZ Simplest Receiving Arrangement: a Telephone in Circuit with Singlepoint Coherer without Tapper-back. B a needle resting against a watch-spring A adjusted by screw C.
Electric waves · Telegraph, Wireless · Electricity · Wireless Technology
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