This specific tube has beentested and shown to be in good working condition. 6S8GT Tung-Sol Triode-Twin Diode Converter Vacuum Tube – TESTED. Tested – This tube has been tested with a B&K or Hickok tube tested.
Philco 6S8 Triple Diode Triode AM/FM Receiver Audio Vacuum Tube Electron 6S8GT
tested, good, working