Questions regarding R179 R188 R143 Train Cars

[mark1447]

Here's the easiest way to tell the difference. R142s are the extremely loud and dirty trains while the R142As are the quieter high-pitched trains. R143s are the ones that sound like the R142As while the R160s sound like the R142s. The R143s have the American flag on the bottom while the R160s have the flag on the top (like INDman said). That's how an everyday passenger would remember it.

 

Actually the R160 Alstom propulsion sounds like the R142

 

The Siemens ones sound like an R142/A together

[Eric B]

It won't make too much of a difference at all. Diodes of all colors emit the same light intensity. The only problem is they are only available in white, amber, green, blue, purple, and yellow IIRC. That's leaves the , , and without a color designation. And the will need a lighter blue as well.

Color changing signs are made by mixing the three primaries, red, green and blue, just like a video/monitor screen. There are individual LED's having all three color capabilities, and older displays use separate R, G & B LED's side by side. (this would be an even cheaper option).

 

Brown would be basically a dark orange/amber, with a similar RGB value you would use to make the color on the computer screen. Gray is all three colors at about half intensity (e.g. 808080). Light blue is blue + green (00FFFF).