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Groups > sci.electronics.components > #5946

Re: Replacement LED?

From not@telling.you.invalid (Computer Nerd Kev)
Newsgroups sci.electronics.components, sci.electronics.design, sci.electronics.repair
Subject Re: Replacement LED?
Date 2016-03-24 21:44 +0000
Organization Aioe.org NNTP Server
Message-ID <nd1n31$5cg$2@gioia.aioe.org> (permalink)
References <0001HW.1CA0671B00048EC510F3873CF@news.eternal-september.org> <5ne1fbt0u9qop3jmdkdd18go76did4csr3@4ax.com> <0001HW.1CA11623002D94FA10F3873CF@news.eternal-september.org> <afl3fbh2esigjeuac0l37ohemn38md3ib3@4ax.com>

Cross-posted to 3 groups.

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In sci.electronics.components Jeff Liebermann <jeffl@cruzio.com> wrote:
> On Mon, 21 Mar 2016 22:56:51 -0700, DaveC <not@home.cow> wrote:
> 
>>I like this model for its good trade-off between brightness and battery life. 
> 
> Some day, someone will design a flashlight with an automatic PWM light
> dimmer.  Shine the light at something bright, and the flashlight runs
> at full brightness.  Shine it at something in the dark, and it goes to
> fairly dim.

Hmm, that sounds like a good idea to put in my planned LED torch project,
which was going to have a manual dimmer anyway. I guess an LDR would be
suitable? Maybe mount it in a small tube to make it directional?

I guess I'll have to find an LDR and wave it around with my multimeter
attached. Ahh, the dignity of research. :)

-- 
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Thread

Replacement LED? DaveC <not@home.cow> - 2016-03-21 10:30 -0700
  Re: Replacement LED? Bob Engelhardt <BobEngelhardt@comcast.net> - 2016-03-21 17:00 -0400
  Re: Replacement LED? John Larkin <jjlarkin@highlandtechnology.com> - 2016-03-21 20:05 -0700
  Re: Replacement LED? Jeff Liebermann <jeffl@cruzio.com> - 2016-03-21 20:51 -0700
    Re: Replacement LED? DaveC <not@home.cow> - 2016-03-21 22:56 -0700
      Re: Replacement LED? N_Cook <diverse@tcp.co.uk> - 2016-03-22 15:42 +0000
      Re: Replacement LED? Jeff Liebermann <jeffl@cruzio.com> - 2016-03-22 16:42 -0700
        Re: Replacement LED? DaveC <not@home.cow> - 2016-03-22 16:56 -0700
          Re: Replacement LED? Jeff Liebermann <jeffl@cruzio.com> - 2016-03-22 18:16 -0700
            Re: Replacement LED? DaveC <not@home.cow> - 2016-03-22 18:56 -0700
              Re: Replacement LED? Jeff Liebermann <jeffl@cruzio.com> - 2016-03-23 11:11 -0700
                Re: Replacement LED? DaveC <not@home.cow> - 2016-03-23 21:50 -0700
                Re: Replacement LED? Jeff Liebermann <jeffl@cruzio.com> - 2016-03-23 22:49 -0700
                Re: Replacement LED? DaveC <not@home.cow> - 2016-03-24 14:02 -0700
        Re: Replacement LED? not@telling.you.invalid (Computer Nerd Kev) - 2016-03-24 21:44 +0000
    Re: Replacement LED? Syd Rumpo <usenet@nononono.co.uk> - 2016-03-22 09:10 +0000
      Re: Replacement LED? DaveC <not@home.cow> - 2016-03-22 13:41 -0700
        Re: Replacement LED? rickman <gnuarm@gmail.com> - 2016-03-22 21:46 -0400
          Re: Replacement LED? DaveC <not@home.cow> - 2016-03-22 19:00 -0700
            Re: Replacement LED? rickman <gnuarm@gmail.com> - 2016-03-23 00:19 -0400
              Re: Replacement LED? DaveC <not@home.cow> - 2016-03-22 22:23 -0700
                Re: Replacement LED? DaveC <not@home.cow> - 2016-03-23 11:52 -0700
              Re: Replacement LED? "Ralph Mowery" <rmowery28146@earthlink.net> - 2016-03-23 10:31 -0400
    Re: Replacement LED? Andre Majorel <cheney@halliburton.com> - 2016-03-26 19:56 +0000
      Re: Replacement LED? John Larkin <jjlarkin@highlandtechnology.com> - 2016-03-27 10:20 -0700
      Re: Replacement LED? Jeff Liebermann <jeffl@cruzio.com> - 2016-03-28 19:21 -0700
        Re: Replacement LED? "Michael A. Terrell" <mike.terrell@earthlink.net> - 2016-03-31 04:20 -0400
          Re: Replacement LED? Jeff Liebermann <jeffl@cruzio.com> - 2016-03-31 08:34 -0700
          Re: Replacement LED? krw <krw@nowhere.com> - 2016-03-31 20:10 -0400
            Re: Replacement LED? "Michael A. Terrell" <mike.terrell@earthlink.net> - 2016-04-01 17:21 -0400
              Re: Replacement LED? krw <krw@nowhere.com> - 2016-04-01 19:14 -0400
                Re: Replacement LED? "Michael A. Terrell" <mike.terrell@earthlink.net> - 2016-04-01 19:43 -0400
        Re: Replacement LED? Andre Majorel <cheney@halliburton.com> - 2016-03-31 10:40 +0000

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