in discharge-tube amplifiers

Full Title

Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements > Modifications of amplifiers to reduce detrimental influences of internal impedances of amplifying elements (wide-band amplifiers with inter-stage coupling networks incorporating these impedances H03F1/42) > by use of cascode coupling, i.e. earthed cathode or emitter stage followed by earthed grid or base stage respectively > in discharge-tube amplifiers