[Al (astral highway)]

Wow, David! What an answer! I feel amazed and grateful for the time and effort you put into this and no stone is unturned. I now have a great resource to go forwards with. I'm usually inclined to use surface mount techniques using tiles from QRPMe and for Rf work this is brilliant. But I am also interested in reviving my PCB skills and knowledge , so this is fantastic. I'm sure others will fine it helpful too. Many thanks again !