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Old 21st Feb 2017, 5:39 am   #115
Boater Sam
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Join Date: Dec 2013
Location: Middlewich, Cheshire, UK. & Winter in the Philippines.
Posts: 3,897
Default Re: Tandberg Huldra 8 valve failure

It would seem that the EF89 is NOT at fault but the OP cannot give us the voltage readings. It is a red herring that the filament glow is not as bright as the other valves, but the valve is warming.
I think someone needs to move the OP on into actually finding the fault which will probably be in the audio circuit. At present we seem to be chasing smoke.
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