Sure sign of a "bad" tube?

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If the getter at the top of an output tube is almost clear, while the neighboring tubes have getters that are a solid black and shiny, can one safely assume that the tube with the light getter is "bad" or at least marginal?
Sorry, I know this belongs in 'tube 101.'

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Topic - Sure sign of a "bad" tube? - Burke 21:10:46 03/20/06 (3)

If the tube's getter flash is nearly gone..... - Chuck Y 07:59:07 03/21/06 (0)

Re: Sure sign of a "bad" tube? - HiFiBuff 06:29:07 03/21/06 (0)

Re: Sure sign of a "bad" tube? - Jimmy 21:20:06 03/20/06 (0)

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