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Old 19th Sep 2020, 8:12 pm   #13
barretter
Heptode
 
Join Date: Jan 2006
Location: Todmorden, West Yorkshire, UK.
Posts: 870
Default Re: PX4 substitutions

The problem with all the suggestions about using a triode-connected pentode or beam tetrode is that Mr Masek says he wants to retain the original socket and I doubt that there are any adapter sockets unless some enterprising Chinese manufacturer has made one.
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