I recently acquired a Lionel 6-28052 N&W Class A. After tossing it on the rails, I was very disappointed in it’s performance. This engine was a factor TMCC engine, but it did not have Odyssey, the smoke unit fan was constantly on, and it had a firebox glow vs. a flickering firebox. I ended up purchasing a Cruise M, Super Chuffer, Chuff Generator and flickering LEDs.
I decided that I would ditch all of the factory electronics once I opened the engine up. I ended up swapping the motherboard and bracket with one like you would find in a TMCC 611 Class J. I ended up swapping the two wire IR to a three wire IR as I was having signal issues. I installed a smart smoke unit along with an AC regulator (I know some will cringe at that) because I needed to be able to dial back the smoke when I do use smoke, and I fabricated a small flickering firebox board and used an old Lionel DC board to drive it with the appropriate resistor installed. I must say, this is a completely different engine and a great runner now!
I would like to give a big thanks to the forum members that helped me along with this project.