For sale is one (1) vintage Ken-Rad 2A3 tube as pictured. The tube’s base is tight and secure with zero movement / looseness. The test results are displayed in the photos New 2A3 Spec 100% = 5,2. See the photos for physical / cosmetic condition. Notes Regarding Tube Tests. All tubes are tested on an Amplitrex AT-1000 tester in the automatic Fixed Bias Mode (for the most conservative results). Test Results are for a general reference only, and are not a guarantee of performance, nor a guarantee of how they will test on your tester. No real world (audio) performance measurements are taken.