Yep, they're the ones Don :)
Quick update on the amp, as it looks like I have the first "broken" AFD100 :(
Volume started swelling up and down, and now V1 has the bias error light on. Tried several different valves in V1 and every one shows an error. Must be something specific to the V1 power supply. Damn.
It's going back to Sounds Great on Tuesday. Arse.