The thermionic vacuum tube and its applications (1920)
Van der Bijl, Hendrik Johannes, 1887- · New York McGraw-Hill Book, Co · leaf 71
lament and grid G, the cun-ent in the circuit FGAis very small, because practically all the electrons emitted from thefilament are drawn through the openings of the grid and thrownon to the plate. If now the potential of the grid (positive withrespect to the filament) be increased the current to…
Telegraph, Wireless
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
