The thermionic vacuum tube and its applications (1920)
Van der Bijl, Hendrik Johannes, 1887- · New York McGraw-Hill Book, Co · leaf 332
filament current should not be increased muchbeyond this value because that would shorten the life of the tube.If the tube is operated with a resistance Rs in the grid circuit,as indicated in Fig. 169, for example, the value of the oscillationcurrent obtained depends on this resistance, in the… … nvJIIation Currenf plate Current filament CurrentFig. 180. starts at a lower filament current. On the other hand, if theoscillation current be plotted as a function of the filament currentfor various values of the plate potential, a set of curves is obtainedsimilar to that shown in Fig. 181, except…
Telegraph, Wireless
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