Thanks Miked ... but to quote Clint Eastwood (as Dirty Harry): "a man's gotta know his limitations" .....
and repairing one of those things is well beyond my capabilities, though you are absolutely correct in the possible rewards of doing so. I wish I was more of a technical or mechanical mind, but was not so blessed. I can tear stuff part pretty well, though ..... it's the putting back together that always messes me up.... That said, as you point out there's no reason not to try it - and if I can't I can still pass it on as parts...
Thanks for the input.
Bookmarks