The thermionic vacuum tube and its applications (1920)
Van der Bijl, Hendrik Johannes, 1887- · New York McGraw-Hill Book, Co · leaf 305
at the grid always remains negative with respect tothe negative end of the filament. If the grid becomes positiveduring a part of the cycle, it takes current which generally means aloss of power occasioned by heat dissipation in the grid circuit. On account of the curvature of the characteristic,… … -^^immm Fig. 158. out in the oscillation circuit so that most of the energy in theoscillation circuit will be due to the fundamental. It must berecognized that the harmonics cause a waste of power. Theseconsiderations apply in general to the fundamental, the effect ofharmonics being neglected. 85.…
Telegraph, Wireless
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