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 100
ough a hollow shaft, H, to slip rings, P, P, from whichthe currents were taken off by brushes, 0, 0. The fieldmagnet consisted of a kind of toothed wheel, with the teethturned inwards (see Fig. 2), and an insulated wire or strip waswound zigzag fashion between these teeth, so that when a… … Fig. 1. circumference and also easy to put 400 coils on the armature.Hence if such a machine is driven at a speed of 3000 revolutions D E
Radio · Telegraph, Wireless · Telephone, Wireless
Internet Archive · University of Toronto, Robarts Library · Public Domain Mark 1.0. Free to use for anything.
