The principles underlying radio communication (1922)
United States. National Bureau of Standards, Ould, Richard Sheldon, 1889-, United States. Army. Signal Corps · Washington, Govt. Print. Off. · leaf 528
Modulating System Fig.ZSI Circuit for Radiotelephone Transmitter, ^J?Modulation 6y )ar/at/on of Power Input of Generator Tube. … L- es Fig Z3Z. Simplified Circuit Diagramof Modulator System in Pad/ote/ephond^\i\i 524 ELECTRON TUBES. or generator. The resistance of the modulator tube is highwhen the grid voltage is low, and the resistance is low whenthe grid voltage is high. This variation is made electrically atspeech…
Telegraph, Wireless · Radio
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