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If it's not working, a tube isn't drawing the right amount of current or a tuned circuit isn't tuning. If you have limited experience with this stuff you ought to find a mentor to walk you through. What test equipment do you have?
A schematic diagram wouldn't help much; all those circuits are pretty much the same. A superheterodyne with IF of most likely 455 kc (more rarely 262.5 kc). If the local oscillator is running, you have a good start. If not, you need to get it running. That's the 6A8 circuitry.
Do you get a hum when you put your finger on the 6Q7 cap? If so, the audio works okay.
All that's left are the IF stages, the 6K7s.
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10-31-2011, 08:11 PM
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