01-10-2012, 11:33 PM
It looks to me and we suspected that the 36 tube might be bad. If I remove the tube and power the radio up its quiet, when I put it back in the motorboating and squealing happens again. It was motorboating for a long time on one of the power cycles and I detuned the primary of of the 1st IF and got it to stop but then couldnt receive any stations. I tried powering the radio off and turning it back on (while detuned) and it still did its little dance before going quiet.
I tested the 36 tube on my tester and it is just in the good range, and it shows a short on pin 4 cathode. The short indicator was just lighting wasnt real bright, but the light doesnt light at all on the other pins accept the filament which i'd expect.
I ordered a 36 tube on ebay and it should be here in a few days ill give that a try and see what happens.
I tested the 36 tube on my tester and it is just in the good range, and it shows a short on pin 4 cathode. The short indicator was just lighting wasnt real bright, but the light doesnt light at all on the other pins accept the filament which i'd expect.
I ordered a 36 tube on ebay and it should be here in a few days ill give that a try and see what happens.
-Keith
