Title :
Determination of Grid Driving Power in Radio-Frequency Power Amplifiers
Author_Institution :
Radio Engineering Department, General Electric Company, Schenectady, N.Y.
Abstract :
An approximate method of determining the power required to drive the grid circuit of a vacuum tube power amplifier of the class C type when operating at radio frequencies is developed, and a comparison given between the results obtained by this method, and more exact measurements made at sixty cycles. The only quantities which need to be known for the method described are the grid excitation voltage and the direct grid current, the driving power being given by the formula Wd= √2EgIc.
Keywords :
Circuits; Frequency measurement; Loss measurement; Oscillators; Power amplifiers; Power measurement; Radio frequency; Radiofrequency amplifiers; Voltage; Wattmeters;
Journal_Title :
Radio Engineers, Proceedings of the Institute of
DOI :
10.1109/JRPROC.1933.227892
