(under subclass 157) Subject matter wherein the signal derived from the preceding cascaded amplifying device is coupled to the cathode electrode of a following cascaded vacuum tube amplifying device.
SEE OR SEARCH THIS CLASS, SUBCLASS:
88+, and 91+, for amplifiers applying signal feedback to the cathode.
89, for amplifiers having adjacent cascaded stages with cathode-cathode coupling. See (1) Note thereunder.
119, for push-pull amplifiers with coupling to the cathode.
156, for bootstrap coupling where input signal is applied directly between grid and cathode.
