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December 17th, 2008 - Adventures in Engineering — LiveJournal
The wanderings of a modern ronin.

Ben Cantrick
  Date: 2008-12-17 10:25
  Subject:   DIY Plasma Arc Speaker
  Tags:  reddit

Are you tired of those old black speakers that only just make sounds? Maybe sound reactive lights are just not enough to impress you? How about a Plasma Speaker? A plasma speaker is a device that generates a high voltage electrical arc that makes purple light and music!


Includes video of plasma speaker in action. Tesla would be proud.

Plasma speakers (sometimes called flame speakers if the source of the plasma is combustion rather than gas ionization) are a form of loudspeaker which vary the intensity of a plasma, rather than using a magnetic field to push or pull a conventional driver, to create compression waves in air (which a listener perceives as sound).


See also: Tesla coil Super Mario Bros theme duet
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May 2015