The thermionic vacuum tube and its applications (1920)
Van der Bijl, Hendrik Johannes, 1887- · New York McGraw-Hill Book, Co · leaf 221
ating voltage appHed between filament and gridthe alternating current in the circuit FPtq is, by equation (22), —1^- and the voltage in vq is therefore —~. Now it will be observed that if A is positive and B negative, the electron currentto the plate will be increased if the effect of the applied… … Fig. 100. to that in ri, the tone in the telephone receiver can be reduced to aminimum. If this is the case we have tiegTQ =Iri rp+TQBut eg = Ir-Z) hence the plate resistance is: ^^o(m^-I), (42) from which ?> can be computed. Miller puts ri=r2 to obtain asimpler equation. But even so the method…
Telegraph, Wireless
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