The thermionic vacuum tube and its applications (1920)
Van der Bijl, Hendrik Johannes, 1887- · New York McGraw-Hill Book, Co · leaf 273
ency of 800 cycles per second. It is desirable to shuntthe secondary of the input transformer with a resistance to aboutequal to the secondary impedance. The output transformer T2is so wound that the tube works into an impedance equal to itsplate resistance, the secondary impedance of T2 being… … Fig. 1.39. are inserted if the direct current established in the plate circuitby the battery Eb is too large to pass directly through the windingof the output transformer without causing undue heatmg of itscoils. The grid is maintained at a negative potential, with respectto the filament, by the…
Telegraph, Wireless
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