An elementary manual of radiotelegraphy and radiotelephony for students and operators (1916)
Fleming, J. A. (John Ambrose), Sir, 1849-1945 · London, Longmans, Green & co. · leaf 222
ilk-covered copper wire. Associated with this induc-tion coil is a rotating commutator (see Fig. 9) carrying fourinsulating discs secured to a steel shaft. These discs have brasssectors let into their circumference, and against them four springsof brass wire press. As the commutator rotates, these… … [Reproduced from The Electricianpermission of the Proprietors. Fig. 8. iy OSCILLA TIOS DETECTORS ao5 thoin duiinjj; (»ue jutrtinii of its rotation, and loavo thuin maj^netiseddurinj, the other jKuliou. Tlie function of tlio discs 2 and 3 is toshort, circuit the terminals of the secondary coil…
Radio · Telegraph, Wireless · Telephone, Wireless
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