1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

Electronics PLASMA SPEAKER - WOW !!

Discussion in 'Modding' started by Richard, 26 Mar 2008.

  1. Richard

    Richard What's a Dremel?

    Joined:
    7 Jun 2005
    Posts:
    13
    Likes Received:
    0
    Just found these on youtube ! :jawdrop:





    What do you think ? fake or real :confused:
     
  2. rls669

    rls669 i can has dremel?

    Joined:
    15 Mar 2008
    Posts:
    291
    Likes Received:
    0
  3. Fyve

    Fyve What's a Dremel?

    Joined:
    4 Mar 2008
    Posts:
    20
    Likes Received:
    0
    I think it's real, very cool too. Ive read about this some where. I wonder what the sound quality is like, hard to make out from a you tube video.
     
  4. rls669

    rls669 i can has dremel?

    Joined:
    15 Mar 2008
    Posts:
    291
    Likes Received:
    0
    Plasma is for tweeters only as they can't move large volumes of air. But they're supposed to be the best, because they have instant response. No physical driver, no inertia to overcome.
     
  5. hitman012

    hitman012 Minimodder

    Joined:
    6 May 2005
    Posts:
    4,877
    Likes Received:
    19
    It's definitely real. You can make Tesla coils sing in the same way, and that's very similar technology.
     
  6. GoodBytes

    GoodBytes How many wifi's does it have?

    Joined:
    20 Jan 2007
    Posts:
    12,300
    Likes Received:
    710
    Hmm static when no sound is when sound is playing... unable to touch, and sound like singing Christmas cards... I think I'll pass.
    Electrostatic speaker is the big winner in sound quality, however cost a nice FORTUNE, and if you want i for your MP3 player... then be prepared to carry a nice amplifier box with several D batteries to power it up.
    http://www.youtube.com/watch?v=Vdf3VA06iSA
     
  7. Tulatin

    Tulatin The Froggy Poster

    Joined:
    16 Oct 2003
    Posts:
    3,161
    Likes Received:
    7
    Er, anybody got any idea how to build a little monster like this?
     
  8. Cinnander

    Cinnander What's a Dremel?

    Joined:
    19 Apr 2007
    Posts:
    393
    Likes Received:
    2
    heheh cool :D

    Tulatin: Basically an audio amplifier which can modulate the supply to the arc. You can see on the scope it looks like it's being driven with PWM. You can generate this by comparator-ing a fast triangle wave with your audio signal. Then you amplify it a lot - hence the big iron.
    To strike the arc you'd need hundreds if not thousands of volts, and to sustain it (as you can see in the 2nd vid) you need several amps (but at a reduced voltage -- the current keeps the air ionised)
     
    Last edited: 26 Mar 2008
  9. Smilodon

    Smilodon The Antagonist

    Joined:
    25 Mar 2003
    Posts:
    6,244
    Likes Received:
    102
    I just have to bring this one up again ;) :



    Same principle but on a MUCH larger scale.
     
  10. Flibblebot

    Flibblebot Smile with me

    Joined:
    19 Apr 2005
    Posts:
    4,729
    Likes Received:
    201
    Not really convenient to have sitting in your front room next to your TV though :D
     

Share This Page