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[Amps] filament v

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Subject: [Amps] filament v
From: (Steve M)
Date: Sat, 10 Aug 2002 21:43:29 -0500
Hi ampers,

While cleaning my Amp Supply LK 500ZC this afternoon I decided to measure
filament v. It was 4.64 on 1 tube and 4.68 on the other. Last winter I
measured them at 4.79. My voltage runs 245 or more in the winter.
       The amp has the original 1987 Eimacs and I have put several thousand
hours on these tubes in the 5 years I've owned it and never babied them.
Legal limit takes about 115-120 watts drive.
    Would putting 5.0v on the filaments be worth while or just wear out the
tubes sooner?

Steve  wd0ct

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