Reply to "ERR Dummy Locomotive Module Lighting"

christhetrainguy09OGR Forum Member

So basically, the outputs from the ERR boards apply ground when triggered? So if i did 4 LED's in series (2 headlights and 2 green marker lights) use a diode (1N4003), 330ohm resistor? or is there more math to be done for a different resistor value?

10/4/1611:23 PM

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