Valves, I think I'm starting to understand what the fuss is about.

[Reid Malenfant]

I've just checked for audible hum and hiss and I can't hear any hum and just a slight bit of hiss when the volume is cranked all the way up. So I'm happy with that.

The only slight cause for concern so far is that the mains transformer is almost too hot to touch. I've read that they run hot in the KEL84 but I'd prefer to lower the temp if possible. Does anyone know if attaching heatsinks to the transformer sides with heat conductive epoxy will affect the working of the transformer at all? I wouldn't have thought so as aluminium isn't ferrous but I thought I better check to be on the safe side. Cheers.

That'll be fine Dave, though it's the windings that you want to keep cool really