[captainclock1988]

This radio uses all miniature tubes, it uses a 50B5 as the output tube, a 35W4 as the rectifier tube a 19T8 as the AVC/Detector/A.F. tube, 6BJ6 tube as the Ratio Detector Driver, 12BA6 as the IF Tube the 12AT7 as the Oscillator/Converter tube.

hope this helps.

And yes when I get the signal generator this afternoon I will definitely be trying to use that to check the radio.