can I put a ? ohm resistor in the motor circuit to get a williams scale hudson to operate at a higher voltage. In neutral it smokes great. As soon as it gets moving the smoke goes to a trickle.
Get a bridge-rectifier module, like this one: http://www.radioshack.com/product/index.jsp?productId=2062580&filterName=Type&filterValue=Rectifiers Connect the + and - terminals together. Wire the ~ terminals in series with the supply to the motor. This will drop the motor voltage by about 1 volt; and the drop will not be sensitive to the motor current, as it would be if you used a resistor. If you need a bigger drop, put another module in series. If you need less, wire between the +- terminals on the one hand and both ~ terminals on the other hand, instead of wiring between the two ~ terminals.
Bob Nelson
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