Also, if you have a premier locomotive that has additional lighting options, you lose all those with an upgrade kit, you only get headlight control.
GRJ: Why do you limit your statement to Premier? I have R-K's that have marker, interior, firebox lights.
Marty, I hope your comment isn't directed to me. I was a tad confused when the leading 5 zeroes were deleted from these numbers. I don't have a master parts list.
While I have a dozen or so upgrades, I have not done an upgrade to a 5-volt in-steam-loco board; when one failed, I replaced it with another 5-volt board taken from a diesel. If I were to go to a tender-mounted board, how would I not lose the ability to turn marker lights and firebox lights on & off. There is no lead from tender to loco for such functions. It's been well over a year or two since I had one of those locos open, so I may be mistaken, but I don't recall any other boards.