Heathkit TC2 Tube Checker: Emission-only tube tester works and is in good condition. Silk-screened lettering is intact, clean, and legible. Screw heads are tarnished. Scroll chart works, as does chart backlighting as shown in the photo. The meter cover has no cracks. The tester includes an adapter for specialty 10 pin, Nuvistor, and Compactron tubes. The only issue found was the line setting calibration could not be turned down low enough. Google shows this is a common problem due to high line voltage, and there are suggestions on how to fix this. $50 Picture 1 / Picture 2 / Picture 3 Listed 4-26-2022, Mike W0JFB