If tri-color includes Red, Amberish, or Green, you could use something
like Digikey's (p. 593, bottom right of the page) Rect. package
Red/Green LED, White Lens, 100 degree viewing angle, 6.0mcd, P/N
MV49124AQT-ND, $0.60/1, $0.57/10's, $0.52/100's.  Pretty sure the diodes
are back to back so pull low for one color, pull up for the other, OC =
off, alternate pulling up & down for the 3rd color; use one series
resistor and you're set.  There are more (bargraph segments) options on
the next page, etc.

  Mark

Frank Adlam wrote:
> I need to build a LED bar with single tri-colour rectangular LEDs.  Red,
> green and orange will be fine but other combinations can also be used.  If
> the tri-colour LEDs comes in bargraph package it will be very helpful.
> Where do I find it?  Have surfed the web but did not get what I liked.
> Maybe you have used the tri-colour LEDs before in a project, where did you
> source it and who makes it?
>
> Any help will be appreciated.
>
> Thanks for your help.
> Frank Adlam

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