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Reply to "MTH Amtrak Superliner LED Upgrade in Pictures"

upguy posted:

...

If I convert the car to LED lighting, what size and shape LED might fit in the space now occupied by the bulbs.  Would I then be able to attach them to one of GRJ's lighting strip boards along with the white LED lighting strip?

I think you'll find a suitable LED no problem - as to the 2nd half of your question, the most common method of adding a pair of red marker LEDs to a lighting strip requires an external resistor.

2 red leds plus a resistor

So as illustrated above, you'd run a pair of wires off the end of the powered LED strip (driven by GRJ's module) and insert an external resistor in series with the 2 red LEDs.  If this is the wiring approach you're considering, one of us can find the relevant OGR threads or do an Advanced Search using the relevant terms.  It's just that there are variations on adding external LEDs to a lighting strip which affect the desired resistor value...something around 1K Ohms.

It's just that if you're ordering LEDs from DigiKey, minds as well order a handful of 5-cent resistors too since shipping is $4-5.

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  • 2 red leds plus a resistor
Last edited by stan2004

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