[Oldresistor47]

The initial problem was a static. After the coils , caps, etc. I encourage netted this other problem. I did clean the tuner and the fins look straight. I did not change the grommets but do intend to. The 7A8 did have noisy contacts at the pins. l I cleaned them as you have suggested and are solid now. I am ordering another 7A8 just to eliminate that as the problem. Funny you zeroed in on this tube because I put back the old tube and got no stations with it. Both tubes check ok on the tester. The other strange thing is the radio had a 7A5, rather than a 7B5 for the amplifier. I checked to see if it they were interchangeable but got an ambiguous answer. This makes me wonder why it was in there. Thanks for the tips.