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 277
60 words per minute 1 x lU amp. … .. yrolucfdfrjin -The Kleclrician by p-;rniission of the Froprutort. Fig. 15.—Poulsen Photographic Receiver and Records. working on the Atlantic Ocean are equipped with correspondingsending and receiving apparatus, A complete wireless exchange has thus been established, by means of which these…
Radio · Telegraph, Wireless · Telephone, Wireless
Internet Archive · University of Toronto, Robarts Library · Public Domain Mark 1.0. Free to use for anything.
