[jerryhawthorne]

DK, not smart enough to answer that question with knowledge. I suspect some measurements on each tube to see how much current it is pulling would be helpful. Bias voltages can also change the heat inside a tube. Did you run them through a tube tester? Heating of a tube envelope has a couple (at least that I can think of) sources, heater output and emission probably plate voltage as well. How does the radio sound? Good volume, no distortion? If so I wouldn't worry about it much. But then again, what do I know? A testing of the tubes in a tester should give you a good idea of health, measuring some voltages and current draw could give you more. Good tubes with wrong voltages on them can cause the tubes to get real hot!

Jerry