[Al (astral highway)]

Hi David (OP),

Steve's already mentioned making sure that the chassis is connected to neutral, but to make this explicit, that means the BLUE lead. The brown lead is live. Sorry if you already knew this, but if you get this wrong, and, say, touch a grub screw when you're tuning the set or changing the volume or tone, you could be fatally shocked. It's that easy.

Lucien talks about the merit of using RCDs with this sort of set. Just to add that (I think) he means an additional one at the socket, not just the big fat ones on the distribution board under the stairs. I have one for each opearational vintage apparatus.

What is/ was your main rationale for wanting an earth, as a matter of interest?