The thermionic vacuum tube and its applications (1920)
Van der Bijl, Hendrik Johannes, 1887- · New York McGraw-Hill Book, Co · leaf 317
Fig. 169. Fig. 170 shows a Colpitts circuit as it can be used in practice.In tliis case the resistance Rs is replaced by a choke coil Chi.The alternating and direct current in the plate circuit are sep-arated by means of the choke coil C/i2 and the capacity Cs. The … ^^m^msm3 Fig. 170. inductance of this choke coil is usually chosen as high as possible,or at least so high that its impedance is several times the plateresistance of the tube. The capacities Cs and Cb are chosensufficiently large so that they do not appreciably affect the opera-tion of the…
Telegraph, Wireless
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