Thanks so much for that info.
It's too cold for an old man to work on it on the drive, the garage is for the lawn mower and the garden rubbish don't forget.
I'll endeavour to build the thing and report back, if the weather improves - see you in the Spring!
Couldn't see what size of wire needed, any help there please?
"The truth is that our race survived our ignorance during our development.
And it's now it's looking like a scientific genius will do us in!"
Charles H.