GeoPeg posted:Couple of comments, first, if you are running engines with electronics in them (like Lionel's TMCC), you need this protection. If you are running older PW type equipment with no circuit boards in them, you do not need this protection - you did not mention what you're running.
He literally says it in the first sentence
SilverChief posted:For this years Christmas display I'm running a TMCC equipped K-line Hudson in a 4x12 oval layout. I've yet to acquire any remote accessories so will run in conventional mode. Should I have any concerns using the older transformer with the TMCC electronics?