[radiola]

After receiving your replies, I tested each tube for gas leaks by leaving each tube in the tester at least 1/2 hour. No leaks detected. I have replaced at least half of the tubes with NOS. I may have to order a few tubes to do a complete replacement check. I'm curious. As the power resistors heat up, which would take about fifteen minutes, is that pulling on the power supply? That's just a shot in the dark. I know there is a lack of filtering if one does not use a choke to replace the field coil. Thanks for your help, guys.