[apERNA1985]

I have a philco 46 - 420 code 121. When I got it the antenna was missing and I eventually bought a parts set just for the antenna. However after a full recap and alignment it hums like crazy, I also get squeeling and motorboating with the tuning capacitor almost closed. I posted this problem in another forum and someone thought it was electrical interference in my house. I ran a dedicated line from my electric panel to the upstairs in my house. I used 12/2 Romex with a brand new receptacle, I even cut it in the wall. This will be the dedicated line for my AM radio. Then I went downstairs and I shut off every breaker in the house except for the dedicated line running the radio and the hum never went away. Does anybody have any ideas on what it could be? Oddly enough last Saturday at about 8:00 in the morning I turned the radio on and it played perfectly for three and a half hours. I had clear audio no hum at all and it actually sounded pretty good. I shut it off and went outside to do some yard work for a few hours. By the time I was done it was almost time for cousin Brucie so I turned it on and the hum was back. I've tried turning the plug but it made no difference. The tubes all test moderate, I replaced the 7A8 because I had a brand new one, I've tried switching the tubes from the parts set into it and haven't seen any kind of a difference either. I attached some pictures of my work on the chassis feel free to critique my work I love doing this stuff so I want to get better at it.

Here is a clip on youtube you can hear the squeeling and motor boating along with the hum between stations.

[Video: https://youtu.be/vwVZ24rrWPo?is=NvYa9JFY78nPgHqL]