>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?
>
If the pep increases, yes. If the pep does not increase, raising the fil
V is wasteful.
>Thanks,
>Steve wd0ct
>
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>
- R. L. Measures, a.k.a. Rich..., 805.386.3734,AG6K,
www.vcnet.com/measures.
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