[Boatanchors] Old resistor values

[Garey Barrell]

The new traffic lights they are putting up now use big arrays of LED's.  
They are "BRIGHT"!!!  They are certainly red and amber and green to my 
eyes, and can be seen a LOT further away than the older incandescent 
ones.  

I don't notice any yellow or blue cast, but haven't really looked for 
it.  I wonder if this color cast is intentional on the incandescent ones 
or a result of the LED characteristics?

73, Garey - K4OAH
Atlanta

Vic Rosenthal wrote:

> Garey Barrell wrote:
>
>> I don't believe I'm colorblind, but I'd guess the answer to your 
>> question about traffic signals is "the Red is the one on top"!
>
>
> Nowadays the colors used aren't 'pure'.  The red has some yellow in it 
> and the green has some blue in it.  So if you are deficient in making 
> red-green distinctions (as I am), you can still tell by the yellowish 
> or blueish cast of the light.  I think blue-yellow or complete color 
> blindness is much more rare than red-green deficiency.
>