Ok, so I experimented.
I switched out the incadescent 14v bulb with a white inverted LED. Unfortunately, it did not work as I thought it would. The light did not shine down the lucite tube of the crossing gate. Not sure if a focused LED would make a difference.
Anyone here been successful switching it out?
I have a post war semaphore which I would like to try convert only I can't figure out how to take the bulb out. Also would it be an inverted bulb or a focused one?
Your assistance is appreciated.
George