The thermionic vacuum tube and its applications (1920)
Van der Bijl, Hendrik Johannes, 1887- · New York McGraw-Hill Book, Co · leaf 267
oblems that make its construction more difficult.For example, on account of the large amount of power dissipatedin such a tube, the electrodes and walls of the vessel must be morethoroughly freed of gas during evacuation than is required of thelow-power \y\)(i of tube. The heating of the plates…
Telegraph, Wireless
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