Reply to "Adding LED on PS3 locomotive"

willygeeOGR Forum Member

gunrunnerjohn posted:
Actually, common LED are maxed out at 20ma, and you don't really need that much current to light them properly. Also, when you have 18V on the track, the capacitor charges to the peak voltage, so you'll have around 13 volts maximum after the filter. I'd suggest a 470 ohm 1/2W resistor for the two flickering LED's in parallel, and I'd go a separate 1K resistor for the red LED. I think you'll find they look pretty good at those levels. Here's an example...

Would this circuit above albeit somewhat modified work for a single self flashing led to be used as a beacon like you see on some sd 40-2's? It would go in a ps3 gp-35. As soon as i had track power it would come on which is fine with me nod

8/10/166:14 PM

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