I was going to try one of these but have never got round to it, I am going to make it one of my winter projects
I will let you know how it goe's or you could be the first to try it
something along this line, more investigation required yet though as to which would be the best one to replace with.
https://www.ebay.co.uk/itm/Stoney-Ra...qUa76pz9oOQ65A
Also excellent threads below from Keith.
https://www.the75andztclub.co.uk/for...ead.php?t=1371