The A B C of vacuum tubes in radio reception; an elementary and practical book on the theory and operation of vacuum tubes as detectors and amplifiers. Explains non-mathematically the fundamental principles upon which all vacuum tube circuits are based. Includes practical circuits and practical questions and answers. It is written especially for the beginner. All electrical and radio terms are fully explained (1922)
Lewis, Elmer Hugh, 1889- · New York, Norman W. Henley Pub. Co. · leaf 55
thegrid circuit. But when the grid receives a negative charge itrepels electrons and no current can flow in the grid circuit. Theaction of the grid therefore changes the alternating currentwhich would otherwise flow under the influence of appliedalternating E.M.F. into a pulsating current. This is… … Pos. =EZ Plate=- Battery Battery —==- O0ff ■ Neg.%^ Current IndicatingDevice. Fig. 20—One method of applying a desired normal grid potential. current is increased to a greater steady value. In this casethe same equal variations of grid potential produced by thegenerator alternately increase and…
Vacuum-tubes · Radio
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