09-20-2013, 10:29 AM
I've got a 39-30 as well. I have seen some 39-30's with only 1 tube shield, on the 75 tube. For whatever reason, my radio has provisions for two tube shields, on the 75 and the 37. But, when I got it, it only came with only 1 actual tube shield installed, on the 75. Could that be part of your problem?
Tom
Tom