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Hope that someone out there has some ideas on my problem. I am running a DCC layout using an MRC Command 2000 with Digitrax 3.5 amp power supply that allows me to run a non decoder equipped loco. . I have always been able to run 7 or 8 powered locos at one time including those without decoders, up until a few days ago. The problem I have now is one of my consists is 2 Athearn and 1 Stewart/Kato F7's non-decoder equipped and all are geared almost exactly the same. All of a sudden they have very low speed, and if I try to run another consist of 2 decoder equipped locos, the Command 2000 goes into overload and shuts down in about 30 seconds. When not using the non-decoder equipped consist I can run 8 decoder equipped locos (5 Athearn F7's) without any problem for hours on end. The ones giving me the problems have been cleaned and lubed, and all electrical connections are hard-wired for reliability (ready for decoders when I can afford another batch). But I am stumped on what is going on all of a sudden.
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