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 238
ps An ordinary incandescent lamp withcarbon tilament has a metal plate included in the glass bulb, ora metal cylinder, C, placed round the tilament, the said plate orcylinder being attached to an independent insulated platinumwire, T, sealed through the glass (see Fig. 18). When the carbonis… … Fig. 18.—Fleming OscillationValve. pass from the incandescent filament to tlie plate, but not in the opposite direction. This eifect dependsupon the now well-known fact thatcarbon in a state of high incandescenceliberates electrons or negative ions;that is to say, point charges of…
Radio · Telegraph, Wireless · Telephone, Wireless
Internet Archive · University of Toronto, Robarts Library · Public Domain Mark 1.0. Free to use for anything.
