Description
(1) Tested Sylvania 6K6GT Tube (green logo). The tube number has been scratched into the base by a previous owner - see photos. Obviously this doesn't affect the performance :) See test result below. Tested on a recently calibrated Hickok TV-10 tester with no shorts and no leaks with the following results: Gm Test = 1950 micromhos Minimum pass/good = 1000 ~ Please view all 4 photos ~