Just a thought. The FOG signals are the otherway around to those currently existing on the MET Main are they not I believe these show FOG on a yellow aspect with white (or lunar white) for OFF for all other aspects.
........or am I dreaming (again )
This is correct for fog repeaters of multi-aspect signals.
"Rules are for the guidance of wise men and the observance of fools"
Just a quickie as I really need to be asleep again (early start 5.15am...).Interesting stuff. I may have mentioned it in 'the other place' but I have a couple of MT6 diagrams of the Uxbridge branch but I think they are all non-auto signal based. I will try and take a look when I am off next (am in the middle of a '5 day sentence' so Thurs/Fri) and see what I have exactly. One set are on opening IIRC.