2 NOS National Union 6K6 - GT Vacuum Tubes - 1950 Vintage Radio Audio Pentodes
Item History & Price
On my Hickok TV-7 tester they read 74 and 78. A reading of 40 is the minimum recommended. The 6K6-GT (aka VT-152) is a power pentode amplifiertube with octal basing. It is used as the audio output tube in AM radio receivers. Hallicrafters used this tube type in many short-wave models.
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