Thanks, Ashley.? That's another option that I ran across recently and I'll look at that more closely.? I think I have all the components to try it.? Even with the added heat from a dropping resistor, the overall heat reduction from doing away with the tubes should make a big difference.? For now, I'm running with a 120mm muffin fan on top of the cabinet and that does a pretty good job of keeping things cool.? Do you retain the 5R4 for the high voltage rectifier???
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73, Floyd