this is my last post on this forum but wanted to leave with a bit of useful information. been looking for a way to control my layout from a remote using a simple plug in application. found a remote control lamp dimmer that allows you to adjust the power going to the transformer which adjusts the power coming from the transformer. you can preset the top speed at the transformer then use the remote for power on / off as well as set the speed. this works and the track is still being powered by the ac transformer. no glitches of any kind and a really simple way to ad a remote control to ANY analog train. works with marx e units, lionel e units as well as electronic e units. simple and effective total cost $ 24.95.