@TrainLarry posted:It sounds like the uncoupling track is being powered constantly. That would account for your trains uncoupling all the time. You need the UCS-40 controller to properly power the uncoupling magnet and control rails.
Larry
I appreciate your response. I looked for a USC-40 number on the controller, but I find no number at all. This is the same controller that came with the remote-control track when I got it some 55 years ago. When I search for a ucs-40 controller I find that my controller at least looks the same as the pictures I see when I google ucs--40 controller. Not scientific, but best I could come up with.