@MR_P posted:This sounds like a great option for me to change my Williams scale hudsons. Crappy sounds and no low speed control. Today at 10volts they rocket down the rails, 9volts is cruising speed, but 8 is slow and anything under that, it generally stalls. For me, since I'm not running TMCC, I think this is better option than using ERR boards.
I'm going with no, it's not right for that application.
Williams that run too fast because of the specific motor and gearing of the trucks that also draws high amperage.
This is a 4A decoder. Worse, all the back EMF sensing speed control is unlikely to cope well.
Your money, your risk- have fun.
Wire your Williams motors in series is one way to reduce your speed issue in conventional and lower current draw.
Again, you are comparing an 8A capable ERR board, to a 4A board, in a loco known to draw higher amperage just because of the motors and factory gearing.
