This video shows the testing of vintage GE JAN 5654W vacuum tubes using a Hickok 539B tube tester, and highlights the test parameters used for quality checks and tube matching on Hickok 539B/C series tube testers. The 5654W vacuum tube was originally designed as a premium quality substitute/replacement for 6AK5 and EF95 tubes. These ruggedized electron tubes were used decades ago in FAA and military communications applications. The 5654W tube has more recently found new life