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Life of a 45 tube

Is it possible to do a theoretical calculation on the lifetime (hours of use) of a 45 - I'm most specifically interested in NOS globes, but in general.

I've had many 45 amps and many 45 tubes and have had failures - meaning a *premature* end of life - but have never really (that I know of anyway) just run a pair down to wear the measure below minimum.

I'm wondering if someone can tell me what they should/do last based either on calcs (typical operating points) and/or experience.

Thanks!


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Topic - Life of a 45 tube - PaulF70 15:02:55 02/06/16 (10)

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