I am trying to find where each wire goes on the 8 plug socket between the engine and tender on a 2-8-4 sound engine. Also the same on a 2-8-4 non sound 6 plug socket. Can the tenders be switched from one to the other. I prefer my NKP 717 be sound and my NKP 772 be non sound.
I would like to know whats involved putting sound into a non sound version that has the working mars light. Maybe we can figure this out together. Mike
Do you still have the info package that came with them? All my Proto steam loco’s came with an exploded parts diagram so the info your looking for might be found there.