Lampowy wzmacniacz 35W z Radioamatora 9/1974 (nr 243)

A description of the design of a tube amplifier using four EL84 tubes in the output stage. The input stage is unusual here, and that's what we'll focus on. This video is an introduction to a series of videos on cathode followers and cascodes. Before you comment, watch it to the end, as it addresses the objections raised at the beginning.