The thermionic vacuum tube and its applications (1920)
Van der Bijl, Hendrik Johannes, 1887- · New York McGraw-Hill Book, Co · leaf 360
attenuate the current from the generator by means of areceiver shunt S until the current id has the same value as thedetecting current deUvered by the tube. W is a switch wherebythe telephone receiver can be connected either to the output ofthe tube or to the output of the generator. The shunt and… … t/Q / \/W\A/W\///>A/ WAwOwAV) <2> Fig. 202. The shunt and series resistances are varied in definite steps by thesimple operation of turning a dial, these steps being so propor-tioned that the impedance in the output of the generator Uremams constant for all adjustments of the shunt. The…
Telegraph, Wireless
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