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[HOW-TO] VU Meter using old CCFL tube

Discussion in 'Electronic Projects Design/Ideas/Reviews' started by Menticol, Aug 28, 2010.

  1. Menticol

    Menticol Active Member

    Joined:
    Oct 21, 2007
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    Location:
    Bogotá, Colombia
    One and half years ago, a forum member asked about a mysterious VU meter he owned. We tried to know how it worked, but failed.

    http://www.electro-tech-online.com/threads/my-huge-fluorescent-plasma-vu-meter.85714/

    Today I've found what is it, how it works, and how to build one! It's a cold cathode fluorescent tube!!

    YouTube - VU meter

    I don't want any problem with the author, so here you have his links, including Youtube Channel and Flickr

    YouTube - epartgrocer's Channel
    Flickr: stupidb123's Photostream

    Enjoy!
     

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    Last edited: Aug 28, 2010
  2. Externet

    Externet Member

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    Last edited: Aug 29, 2010
  3. pitikarmol

    pitikarmol New Member

    Joined:
    Jul 7, 2012
    Messages:
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    about the neon

    i have made the schematic and i used a old neon that i bought from carrefour 6 years ago. they came with the ccfl bl-204 serie and has attached 2 neons......
    the schematics doesn't work for me...
    and i need to know why is that. the circuit work's fine but the neons just light on and off normal not like in the video. can anyone help me with that?
    sorry for my english.
     

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