"...heat sink the rectifier directly to the chassis and use a larger flash back diode also heat sunk to chassis for some models."
How is this done and what is a flash back diode and what value does it have?
Double checked the resistance on several loose MTH motors and they all measure about 200 ohms. To the electronics trained tech that is my BF this is too much for the boards to handle.
To me there has to be a way to do this... right?