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Old 14th Sep 2017, 4:33 pm   #5
Panrock
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Join Date: Feb 2005
Location: Worcestershire, UK.
Posts: 2,525
Default Re: EHT warm-up delay in pre-war sets

I should mention the cathode bias on the KT41 sound output valve, (heater fed from the other transformer) is a little low for this purpose, at 4v. Just read merlinmaxwell's post above. This is a get-out-of-jail-free card. To say I am grateful is an understatement! Anyway, let's see what other bright ideas come up in this thread first.
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