A band mate dropped by his Peavey Mace VT for me to look at. He said it starting smoking and the power died. He noticed one of the tubes not lit. This is what I found after opening it up: That hole is very suspicious! But I don't see any under board connections and I think that a bad tube killed the resistor, or that is what I am hoping. I only have a 250 ohm 5 watt resistor, not the 100 ohm like the blown one. Would it be ok to use that value? Fender uses 470 ohm in the same location. The replacement tube I have is going to be slightly unmatched to the original tubes anyways. I'm good with amp safety and have done multiple cap jobs and a few scratch builds. I'd like to see if a new resistor and tube fixes it, otherwise it'll go in to a amp tech. The caps likely need replacing anyways and I've gotten spoiled by how easy it is to work on my old Fender amps..this thing is a monster. Thanks!