The thermionic vacuum tube and its applications (1920)
Van der Bijl, Hendrik Johannes, 1887- · New York McGraw-Hill Book, Co · leaf 250
nt /^ isdue to the electrostatic screening effect of the grid. An expressionfor this effect had been derived by Maxwell long before theaudion came into existence.^ The problem that Maxwell sethimself was to detennine the extent to which a wire grating orgauze could protect apparatus enclosed by it… … 30 40 ^node Volts Fig. 118. Maxwells results can be expressed as follows: Let F and P(Fig. 119) be two infinitely large parallel planes with a grating Gof parallel wires interposed between them. Let the potentialsof F, G and P be F/, Vg and Vp, respectively. The wires of thegrid are of the same…
Telegraph, Wireless
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