The thermionic vacuum tube and its applications (1920)
Van der Bijl, Hendrik Johannes, 1887- · New York McGraw-Hill Book, Co · leaf 276
ice as large as the plate resistance, in order to make thephase difference between grid and plate potentials as near as 180°as possible, thereby straightening out the tube characteristic andminimizing distortion. (See Section 59.) The circuit shownin Fig. 142 is so arranged that both tubes can be… … Fig. 143. filament rheostat R/. The resistance r should be large, preferablyof the order of one or two megohms, and merely serves the pur-pose of maintaining the grid of the second tube at the desired d-c.potential. Instead of using the inductance L and condenser C, a step-uptransformer can be…
Telegraph, Wireless
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