Want a quick way to convert an Athearn loco with a 9-pin plug to DCC? Pop out the dummy, pop in the D13J and put it on your programming track to change from 3 to the loco number. I have put various NCE decoders in all of my non-sound locos and they all worked the first time.
Well-done redesign of my go-to decoder! The new smaller size fits in more applications, including the tank engine for which I purchased this first one!