I have 4 CW-80s. One of them has been serving me faithfully for 5+ years. But I have one that I use on my carpet layout, and the last couple of days it has been doing some weird things. It's got the normal loud fan (one of these days I'll open them and oil those fans) so that's not what's bugging me. I noticed that the light on my locomotives and cars are pulsating at lower voltages. And it's not steady either. At first I thought maybe some filtering was going and that I was seeing the AC cycling, like you do on florescent light. But then when time while running the trains I saw the pulsing slow down, and then speed up. The locomotive motors don't see affected by it at all as they still go steady, as does the sound systems. It's only the lights that are affected. Sometimes it's not there, other times it's fast and other times it's slow. Most times it changes, and throttle position doesn't change the rate of the pulse but sometimes the horn and bell button do. I guess tonight I should pull out one of my other CW-80s to make sure it's not the power going to the transformer, but if it was you'd think the house lights and wall mounted AC meter would show it too. I did use my multimeter and check voltage and amperage, both are steady while the locomotive is and isn't on the track.
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