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 18
rough a circuit. Manydynamos, however, produce a pulsating E. M. F. which causesa pulsating current to flow (in one direction only) througha circuit. The periodical increases and decreases of E. M. F.and current may be made very small, however, so that theyare hardly perceptible. Alternating… … Current Max.in Heg. Direction Fig. 3—One cycle of current changes and reversals. per second. Frequency 60 cycles while acting in each direction it increases to a maximum valueand decreases to zero. The current created will also changeits direction of flow and increase and decrease in…
Vacuum-tubes · Radio
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