RCA-Victor 21-T-8428 TV - Help!

[mt999999]

Hello all... I'm new here and I am hoping someone could help me. I found an antique RCA 21T8428 television in my cellar and I decided to plug it in... bad idea. I got sound to come out (I plugged up an analog cable line through an adapter) and tried to tune in a picture. A few minuets later it smelled awful and white smoke was pouring out what I believe was the power supply box. There was audiable poping and cracking, but it was still running. All the tubes were lit. I forgot to mention I had to wire on a new cord... perhaps my Grandma cut the plug for a reason. I want to know if I destroyed the power supply, or if it was already broke, or if that isn't it? Perhaps I should have replaced some caps first... thanks for the help!