1 NOS RCA 50EH5 Vacuum Tube. Hickok TV-7D/U test reads 68. This clear top RCA tube is from December 1961 USA production. It features a gray plate, copper grid pins and the getter on the side of the tube.
Item Tag: Strong TV-7D/U Test
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1 NOS Philco 2A4G Vacuum Tube for Philco Radios with Wireless “Mystery Control”
1 NOS Philco 2A4G Vacuum Tube. On the Hickok TV-7D/U tube tester the 2A4G should strike between 86 and 76 on the bias setting. This tube strikes at 80 and reads 60 after reaching the strike threshold.