The thermionic vacuum tube and its applications (1920)
Van der Bijl, Hendrik Johannes, 1887- · New York McGraw-Hill Book, Co · leaf 295
d by CL^r. On account of the mutualinductance M between the coils L\ and L2, current variations inL2 cause potential variations to be impressed on the grid. Theoscillation circuit CrL2 is practically non-reactive at the oscillationfrequency. A current in the plate circuit establishes an E.M.F.in… … •-^M^ Fig. 152. and this current induces an E.M.F. in the grid coil Lx, 90 out ofphase. The potential variations impressed on the grid by thereaction of the plate circuit on the grid circuit are therefore inphase with the plate current variations. In order to obtain an expression for the condition…
Telegraph, Wireless
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