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Jez1234 · 29th May 2021, 1:49 pm

FWIW I've designed and built amps in which an EF184 was giving around x 400 gain.

A CCS was not a practical suggestion with a pentode for the reasons David outlines above but I have used bootstrapping to the same effect and without the DC issues.

29th May 2021, 1:49 pm	#28
Jez1234 Banned Join Date: Mar 2021 Location: Morpeth, Northumberland, UK. Posts: 936	Re: Advice on this linestage build FWIW I've designed and built amps in which an EF184 was giving around x 400 gain. A CCS was not a practical suggestion with a pentode for the reasons David outlines above but I have used bootstrapping to the same effect and without the DC issues.