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#3
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I must have cleaned off legible markings when I inscribed "35Z5" on the base. The 50A5 is, (of course) the only tube I don't have a spare for, but fortunately is cheap and available. I may dissect the tube to see if the the filament defect is visible.
Thanks, that's very helpful.
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Winky Dink Damn the patina, Full speed ahead! |
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