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  Re: Homemade LED Bricks
 
Hi! It is not possible to have a two-terminal and dual colour LED. One of the three terminals is a common negative terminal of two LEDs that are inseide the same casing. The two remaining terminals are used to connect positive side of battery to. (...) (25 years ago, 15-Nov-99, to lugnet.robotics)
 
  Re: Homemade LED Bricks
 
Maneesh Soni writes: > It is not possible to have a two-terminal and dual colour LED. Sure it is. You connect them back to back, so that positive current gives you green light, negative current gives you red light, and alternating current gives you (...) (25 years ago, 15-Nov-99, to lugnet.robotics)
 
  Re: Homemade LED Bricks
 
=>From: "Maneesh Soni" <maneeshsoni@hotmail.com> =>... =>It is not possible to have a two-terminal and dual colour LED. One of the =>three terminals is a common negative terminal of two LEDs that are inseide =>the same casing. The two remaining (...) (25 years ago, 15-Nov-99, to lugnet.robotics)
 
  Re: Homemade LED Bricks
 
(...) Such LEDs are available. Forward DC -> red, reverse DC -> green, AC -> yellow. I'm looking at a catalogue now with some. -- Frank Wales [frank@limitless.co.uk] (25 years ago, 15-Nov-99, to lugnet.robotics)

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