@31charlie posted:The whole layout is designed to be powered by one transformer, either a PW KW, ZW, or an MRC Pure Power Dual. The layout is designed so that they are all interchangeable.
Below are a couple of pictures so you can have a visual. I hope I'm doing this right, it's my first time posting photos here. The first one is an earlier picture and the second one is after I finished the frame and control panel. The transformer just sits on the control panel when in use and is removed before the control panel gets folded up for transport. I was just starting the wiring when I read about TVS diodes and circuit breaker protection here on the forum. My last layout was about 25 years ago and all I used then was what ever my transformer came with. And yes, I do think I have a thing about toggle switches.
Charlie, while not necessary, you could power the uncouplers from another (Aux) source than the one controlling the trains. That would allow you to supply the optimal 10-12 volts to the uncouplers while providing independent speed control the the train either conventionally or 18v for TMCC/DCS/LionChief. In any case, a second breaker could optionally be used for the Aux power.
