> In lugnet.trains, Dean Husby writes:
> > Make sure you have a circuit to adjust the DC to always send the + into the • LED
> > the right way.
>
> Or use two LEDs in parallel, with opposite polarity.
>
> ROSCO
Yes, that would work, I've used that several times like in my Road Crossing. But
two LED's gets bulky.
(...) But (...) But it has another advantage - if you use one red & one clear (white) at each end, you can have automatic head / tail lights on your engine. ROSCO (26 years ago, 25-Jan-01, to lugnet.trains)
