Hickok TV-7D/U test reads 90/94. 1 National Union 6F8-GVacuum Tube.
Item Tag: Hickok TV-7D/U Tested
1 NOS National Uniom 7F7 Vacuum Tube – 1950’s Vintage Audio Twin Triode
1 NOS National Union 7F7 Vacuum Tube. Hickok TV-7D/U tests read 52/55. This tube is from 1950’s USA production. It features round gray plates and the getter at the top.
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1 National Union 6C8-G Vacuum Tube – 1940’s Vintage Audio Twin Triode Untested
Untested but looks to be unused.