[dseverson]

Well, I cleaned all the tube sockets and it looks like there is some progress. Now I get a loud hum from the speaker but it isn't affected by the volume control. In other words, the hum stays the same whether at high or low volume.

I checked the resistors and found that the candohm resistor is now measuring 82ohms and .7ohms instead of 80ohms and 40ohms. When I first checked it, it was fine. I'll change that out for new 10w resistors I have.