Switched on this evening paying close attention to the fuse area and no flash or light
Sounds like you have a momentary arc Bevo make sure the clips holding the fuse are clean and tight
Something I discovered this evening while playing with my ir thermometer, although the body of the TP is hotter the tops of the tubes measured 43c compared to 77c on the amp
Same... The tp tubes themselves stay actually very cool relative to the amp tubes but the base is easily twice as hot. Ordered a fluke laser temp probe to take some measurements.