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Author Topic: LED Sign without led's in the 50/60's?  (Read 404 times)
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while watching a show on fashion, while i was slowly nodding off to sleep while my wife continued to watch...


All of a sudden something interesting appeared! - imagine a scrolling LED sign, without any LED's, this brought up 2 questions, what/how?  anyway your
thoughts would be nice to read smiley


I recorded the video from my phone, take a look...

http://www.youtube.com/watch?feature=player_detailpage&v=gWvYYAM1E6Y#t=15s
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Norfolk UK
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Incandescent light bulbs.
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There is no such thing as a stupid question but there are a lot of inquisitive idiots.

Valencia, Spain
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Maybe they had a paper tape with holes in it for the letters...similar to the technology invented by Mr. Jacquard in 1801.

All you need then is some photo resistors and a bank of vacuum tubes connected to light bulbs.


« Last Edit: December 14, 2012, 10:46:04 am by fungus » Logged

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I don't think you connected the grounds, Dave.
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http://en.wikipedia.org/wiki/Trans-Lux
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