One, new in original box, Tung Sol #80 tube with the tall, shouldered glass bulb. This is obviously, a vintage, US made, Tung Sol tube and not a modern-day, Russian made, Tung Sol re-issue/reproduction tube. The #80 tube is of course the exact equivalent of the UX280/UX-280, CX380/CX-380, 180, and 280 tubes. Black plates, off-white printed logo base. Tested on a Hickok TV-3 military tester that has been calibrated, just to make sure. Firm base, excellent silvering. The tube tests at a new level. Tube has the date code of "322201", the 1st week of 1952.    

Many other lots of tubes for sale this week.