The thermionic vacuum tube and its applications (1920)
Van der Bijl, Hendrik Johannes, 1887- · New York McGraw-Hill Book, Co · leaf 395
ies with the field windingof the generator. The grid of the tube is connected to a con-venient point on the resistance E in parallel with the field winding.Suppose, now, that the voltage of the generator tends to increase. 372 THERMIONIC VACUUM TUBE This increases the flow of current through the… … Fig. 224. winding are in series. By this means, any tendency for the voltageto increase is counteracted. The same thing, of course, holdswhen the voltage tends to drop. Fig. 224 shows an adaptation of this method of control forkeeping the current output of the generator constant. It will be
Telegraph, Wireless
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