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Old 14th Sep 2017, 5:45 pm   #11
Brigham
Octode
 
Join Date: Mar 2006
Location: Co. Durham, UK.
Posts: 1,115
Default Re: EHT warm-up delay in pre-war sets

Finding the right valve might be a better bet.
Otherwise adapting the circuit to use a more readily-available one might be possible.
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