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 349
nt in the connectingwire by means of the variation in resistance which takes placewhen carbon surfaces are more or less pressed together, and there-translation of this variable electric current into the movementof a receiving diaphragm is made to take place by means of thevariations in the polar… … Simple Form of 66 Sound as in Coo. I » ♦ I • I I M I M •» •» •» •! 4 4 •» 4 4 4 4 •• 4 4 » S 4 1 Complex Form of 60 Sound as in Coo.
Radio · Telegraph, Wireless · Telephone, Wireless
Internet Archive · University of Toronto, Robarts Library · Public Domain Mark 1.0. Free to use for anything.