After trying several plans for signals it became obvious i couldnt get the true prototype look partly because of my lack of knowldege partly because the track layout is non prototypical.
http://i179.photobucket.com/albums/w...n30/gantry.jpg
http://i179.photobucket.com/albums/w...30/gantry1.jpg
http://i179.photobucket.com/albums/w...30/gantry2.jpg
The lights along with a single colour signal at the other end of the tunnel are controlled by a 3 pole 4way rotary switch.
John
RJR