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peter_sol · 12th Jul 2019, 7:47 pm

Swap the EL42 valves over and see if the same valve is still hotter.
I assume you have changed the coupling caps.
It is possible that the output transformer is at fault.

12th Jul 2019, 7:47 pm	#42
peter_sol Octode Join Date: Aug 2003 Location: Welwyn Garden City, Herts. UK. Posts: 1,906	Re: Voltages on ECC83 in BlackBox Swap the EL42 valves over and see if the same valve is still hotter. I assume you have changed the coupling caps. It is possible that the output transformer is at fault.