The thermionic vacuum tube and its applications (1920)
Van der Bijl, Hendrik Johannes, 1887- · New York McGraw-Hill Book, Co · leaf 169
pplied directly between the filament and a planecoincident with that of the grid.The small quantity e represents anintrinsic potential difference be-tween the filament and the sj-stemconstituted by the grid and plate.The constant fx depends on thestructure of the device (see p. 226).If we now apply… … Fig. 68. I=j[-^+Eg+e (2) Before discussing this relationship, let us look more fully intothe functions of the two quantities Eg and Eg. To simplify matterssomewhat we shall neglect the effect of the small quantity e.In Fig. 69, the distribution of the field intensity in the region THE THERMIONIC…
Telegraph, Wireless
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