L.E.D.'s

[Tony Clark]

> I apologize if this is a redundant or "silly" question, but:
> 
> Does anyone know if there is such a thing as a L.E.D. which can produce
> four colours of light?
> 
> I know there are bi-colour types which can produce three.

  There might be tri-color ones, but I don't think I've ever heard of a 
quad.  If there is a tri-color one, you can definately get four or five 
colors out of it.  Of course, with a standard bi-color you can get three.

   Tony

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I can't drive (my Moog) 55!
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Tony Clark -- clark at andrews.edu 
http://aupe.phys.andrews.edu/~clark
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