[Arran]

Have a look on one of the many sites out there for British made radios, there is also a vintage radio forum for the U.K which should come up with a search. In Britain they used to have Radio Trader service sheets and they would have diagrams for dial cords, as well as schematics, and placement of components. They are rather like the Sam's Photofact folders but better.
Regards
Arran