Right you are Nicole. I have had some PS/1 locomotives that won't run properly on the variable channels of the TIU, also some Lionel conventional models. I had one of the MTH wireless IR conventional lockons for testing, and it didn't like some conventional locomotives, including several of the PS/1 models.
Looking at the waveforms, I can see why the CW-80 is more problematic! ![](https://ogrforum.ogaugerr.com/static/images/graemlins/icon_biggrin.gif)
CW-80 with no load. The ringing goes away but the waveform stays the same with a 2 amp load. I missed getting that shot for some reason, don't feel like going back and doing it over.
![ADS00001 ADS00001](https://ogrforum.ogaugerr.com/fileSendAction/fcType/0/fcOid/25363725033590286/filePointer/25504494614693942/fodoid/25504494614693936/imageType/MEDIUM/inlineImage/true/ADS00001.BMP)
TIU at full voltage out, looks pretty good. This doesn't change with the 2 amp load.
![ADS00003 ADS00003](https://ogrforum.ogaugerr.com/fileSendAction/fcType/0/fcOid/25363725033590286/filePointer/25504494614693943/fodoid/25504494614693937/imageType/MEDIUM/inlineImage/true/ADS00003.BMP)
TIU at half voltage, again this doesn't change with the 2 amp load.
![ADS00005 ADS00005](https://ogrforum.ogaugerr.com/fileSendAction/fcType/0/fcOid/25363725033590286/filePointer/25504494614693944/fodoid/25504494614693938/imageType/MEDIUM/inlineImage/true/ADS00005.BMP)