Had an MTH NW2 that I converted to TMCC. one day the command control wall wart burned out and I had 18 volts running to my tracks in conventional. The locomotives flew off the rails from 48 inches off the floor, doing a summersalt aND landed on its cab. I had to replace the whole shell with a new one. Also bent the motor shaft that had the flywheel attached. Otherwise it works fine .
