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 101
e armature of the same polarity. In this y^ ^ ^ U second form the armatureconsisted of a copper platein the form of a disc witha large hole in it (see Figs.3 and 4). The plate wascut through by radial slitsalternately at the insideand outside edge, so as todivide the plate up into azigzag strip.… … Fig. 3. all those on one side being of thean equal number of like poles onthe opposite side, of tlie opposite polarity. In this manner, thedisc was perforated by the magnetic flux passing across from oneset of poles to another, and the passage of the strips into whichthe disc is cut up, into and…
Radio · Telegraph, Wireless · Telephone, Wireless
Internet Archive · University of Toronto, Robarts Library · Public Domain Mark 1.0. Free to use for anything.
