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Old 15th Sep 2021, 12:35 am   #11
Radio Wrangler
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Join Date: Mar 2012
Location: Fife, Scotland, UK.
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Default Re: What happens if a valve's cathode becomes electrically detached ?

As it was part of a matched set, presumably it worked unremarkably before dispatch. So it must have been some vibration-induced defect that occurred during shipping.

DAvid
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