The thermionic vacuum tube and its applications (1920)
Van der Bijl, Hendrik Johannes, 1887- · New York McGraw-Hill Book, Co · leaf 329
attery be imme-diately cut out, or its voltage be sufficiently reduced. 94. Method of Adjusting Coupling between Output and Input.In order to obtain the best operation with a tube, it is necessaryto adjust properly the coupling between the output and inputcircuits. In most circuits this is readily… … Fig. 178. pitts circuit; that is, a circuit in which the coupling betweeninput and output is capacitive. The coupling is changed bychanging the condenser C2, but it will be seen that this at thesame time changes the frequency of the oscillation circuit LC1C2.This is usually taken care of by…
Telegraph, Wireless
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