[Arran]

Mike;
  Some of those A.K transformers also feature rubber/gutta percha covered wires, I don't know about the 808A though. With regard to the resistors are those the kind with the metal ends or are they the more typical radial lead types with the body-end-dot code?
 Like I was saying about the wiring in your new 41-280, different coloured wires seem to deteriorate at different rates, but I guess it depends on who supplied the wire, or the batch? In Rogers built sets the worst stuff for rotting was the green and blue wires, the white and yellow held up the best, and the other stuff was somewhere between the two, obviously the black and red ones are the bad guys in A.K sets.
Regards
Arran