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 102
nt to a zigzag winding, and this was driven at a highspeed so that the radial elements of the armature cut acrossstreams of magnetic flux. A very strong excitation could there-fore be employed without producing any wasteful leakage flux.The chief defect of this design of armature is that unless the… … Fia. 4. machine of this type, constructed by Tesla, the field had 480 polarprojections on each side, and from tliis machine it was possible toobtain a current having a frequency of 15,000 complete periodsper second. When a machine of this description having a discof considerable diameter is driven…
Radio · Telegraph, Wireless · Telephone, Wireless
Internet Archive · University of Toronto, Robarts Library · Public Domain Mark 1.0. Free to use for anything.
