[TenTec] Centurion Amplifier history

[carboyhat at juno.com]

Kim, Check out W8JI.com and go down to vacuum tubes in amplifiers
article.  He gets into the topic of
activating the 'getter' in tubes to remove oxygen.  

Bob, AA4AI, Watkinsville GA
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On Thu, 15 Mar 2012 12:54:36 -0700 (PDT) Kimberly Elmore
<cw_de_n5op at sbcglobal.net> writes:
> I've heard all sorts of variations on "burn-in." Is the appropriate 
> burn-in 
> different for thoriated tungsten cathodes vs. oxide cathodes? What's 
> an 
> authoritative recommendation?
> 
> Kim N5OP
>
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