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Y'all win. I lose. I bought this in March 2013 as an 80 and first tested it 25 January 2014. It tested 'good' and I put it away. BUT...I put a sticker on it that says "World Tube/Used/Mar 20013/No ID on Tube." It didn't light up then like it did in the photo and video. I got the 83 data sheets and retested the tube. Heathkit TT1 settings are virtually the same for the 80 and 83. I can see some constant blue now, but after multiple tests, I only got one blue flash for a second. I took some new photos and will take some more when it's dark.
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Winky Dink
Damn the patina,
Full speed ahead!
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