Avo Valve Tester

[Sparks]

I don't suppose there is much to it. Checking with a continuity tester will soon show how it is wired. I will need to find out which are the top-cap connecters. But after I have my own panel up and running, I will probably dispose of the original valve-holder panel on Ebay - rare or not
My sockets ordered yesterday, have just arrived, so I can now go ahead making up the new lead.
Bob