Hi guys: Last week my son in St. Louis (WS8X) posted a question about a sudden transmit power loss on his newly purchased T-4XC. After trying some of the suggestions he received with no success, he brought it home to me (WW8X) in Miamisburg to take a look at before having a pro find the problem.
I took the top of the RF cage off and noticed the cap on one of the 6JB6s was loose. I touched it and it broke clean away from the tube! I also noticed the resistor connections to the plate caps were weak... so weak that with a small jiggle, they both broke loose. I re-soldered the plate cap back to the small wire that was luckily still sticking out of the tube and re-soldered the plate cap resistors back in place. When we turned the rig on we got full RF power out on all bands!! I was luckily able to repair it without buying new finals. Problem solved. I'm wondering how common is it for a plate cap to break away from a 6JB6 like that? It seemed awfully weird for that to have happened?? 73, Joe WW8X Miamisburg Ohio
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