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[quote]QUOTE: Originally posted by Seamonster The problem with using an LED (or any light) across the block gap is that the voltage will vary, depending on how fast the train is going. If you size the resistor for maximum voltage, the light may not be bright enough for a slow train, and if you size the resistor for low voltage, when you crank up the throttle you may blow the LED or light. ...Bob [/quote] I should have thought about that....duh... thanks scada
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