Vacuum tube 422A Western Electric 2-tube pair WE DD getter This product has been tested with a TV7 D/U vacuum tube tester. Matching pair Measured values: 54-54, 56-56 Rejection value: 40 (65%) I am listing this item because I purchased it on Mercari last month and did not use it. It appeared to be unused at the time of purchase, but I will treat it as a used item. As this product has aged since its manufacture, the assessment of its "newness" is only relative. Please check the photos in the product description for details. There is a small crack in the glass inside one tube, but I believe it will not affect the operation.