The thermionic vacuum tube and its applications (1920)
Van der Bijl, Hendrik Johannes, 1887- · New York McGraw-Hill Book, Co · leaf 217
alues of Ep and Eg be Ip. Now let theplate voltage be increased to Ep. This causes an increase in theplate current. In order to bring it back to its original value Ip,the grid must be made more negative with respect to the filament.If the necessary grid voltage is E\, fx is given by M = Ep —Ep Eg—… … Fig. 97. plate, their values depending upon those of ri and r2. Since apotential apphed to the grid produces /x-times the effect of apotential applied to the plate, it is evident that no change willbe produced in the reading of the current meter by closing K if — = M- For convenience in measurement…
Telegraph, Wireless
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