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led torch

Discussion in 'Electronic Basics' started by Johan Wagener, Oct 31, 2003.

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  1. I had a circuit diagram of a led torch that uses a 555 to pulse the led so
    that it can produce more light without burning. I lost it and I am looking
    for it. Does this really work as effective as they say? I want to build it
    using 4 4.4cd green leds
     
  2. No, it doesn't, according to Don K's LED pages.
    See the sixth paragraph here. http://members.misty.com/don/ledx.html

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