Admiral 14R12 Restoration

[Crist Rigott]

Originally Posted by bandersen

This IF design uses over coupled IF transformers rather than stagger tuned. One stage is peaked to 25.3 and the other to 23.1. That's an economical design that flattens out the response somewhat but not as good as a real stagger tuned with multiple stages each peaked to a different frequency.

Did you follow all the setup directions including replacing the converted tube (6J6) with one that has pin 1 clipped off ? As mentioned above, it's important to use as low a signal level as possible

Bob,
I just saw this when I posted just above.

Yes, I followed the procedure and uses a known good 6J6 with pin #1 clipped off.

I'll redo the procedure and pay very close attention to having the signal generator turned down as low as possible.

One quick question. In the Sams it says that the dummy antenna terminals should be "Direct" connected. What is a dummy antenna? I'm thinking it really doesn't matter because there are no signals being transmitted anyway. I could be wrong though.