Matched Pair Tung-Sol JTL-5814A Long Plate Audio Tubes. 1959. Tested good @ 88/89, 85/85 with a minimum of 55/55. Tested on a recently calibrated B&K 747 Dyna Jet Tester. 1940, 40s, 1950, 50s, 1960, 60s, 1970, 70s. Tube(s) shown in pictures will be the exact tube(s) you will receive.