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[quote]QUOTE: Originally posted by Texas Zepher [quote]QUOTE: Originally posted by flee307 Try putting a small mylar cap across the motor brushes. I bet those old motors are generating "noise" that fools the autoreverse into triggering.[/quote] Please explain in more detail. On a DCC unit the track power never "sees" the motor as it is separated by the entire decoder circuit, so I don't understand. [/quote]Just because you have a decoder in place don't mean that the motor isn't hooked to the track. Where does the power come from? Old motors generate lots, and I mean lots of RF noise, some may be feeding backwards through the decoder (decoders are not rf sheilded and all diodes have reaction times and reverse leakages) into the track which the reverser sees as a short, and that's afterall what triggers the autoreverser to reverse. In the old days motor RF was so bad your neighbors could watch you run your trains on their TV. Some of this digital stuff is real untolerant to such "noise" so it's IMHO worth the 10 cents to put one in and see if it helps. Beats buying a new autoreverser rigth away. LOL Fred
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