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17047  |  17049
Subject: 
Re: My first train7 project
Newsgroups: 
lugnet.org.ca.rtltoronto, lugnet.trains
Date: 
Mon, 8 Jan 2007 21:13:25 GMT
Viewed: 
3569 times
  
In lugnet.org.ca.rtltoronto, Martin Legault wrote:
In lugnet.org.ca.rtltoronto, Calum Tsang wrote:
<snip>

There are three yellow, regular style rounded LEDs shoved into the tubes of this
piece:

http://www.peeron.com/inv/parts/6192

Have you tried to put 1 red, 1 green and 1 blue led per pieces to obtain white
light? That would do like TV,LCD, plasma.  Adjusting the power for each led
migth be tricky to have white ligth and not kind of reddish or greenish ligth.

Whoa, a blast from the past!  Hi Martin!

We did experiment with the "blue" lights, red ones and yellows, with both yellow
trans and light blue trans domes.  By far the blues are MUCH more directional
(or "point source" maybe a better way to describe it) like than the old school
yellow and red ones, which are much more mellow.

Putting a yellow and a red in proximity didn't yield any mixed light :(  They're
not close enough and there's nothing fusing the colours together (the plastic
certainly doesn't).  Perhaps a reflector might have worked, but it would make
the assembly pretty huge.

The resultant combo looks sorta like a 1970's spaceship control panel. :(

I know there are white LED's...I think this guy seriously gave me the wrong
ones.  For the dollar a piece they were, I'm kinda angry.

Calum



Message has 1 Reply:
  Re: My first train7 project
 
(...) Ya I know, I still regularly read Lugnet but my post are realy rare now. (...) I thought that you mean that white led were too bluish. Find a better shop :-). Have you tried to bring a 9V battery (with a 1KOhm resistor) to test the led in (...) (18 years ago, 8-Jan-07, to lugnet.org.ca.rtltoronto, lugnet.trains)

Message is in Reply To:
  Re: My first train7 project
 
In lugnet.org.ca.rtltoronto, Calum Tsang wrote: <snip> (...) light? That would do like TV,LCD, plasma. Adjusting the power for each led migth be tricky to have white ligth and not kind of reddish or greenish ligth. (...) Martin (18 years ago, 8-Jan-07, to lugnet.org.ca.rtltoronto, lugnet.trains)

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