Plasma Arc Speaker
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Uploaded by ELGEvilLawnGnome on May 5, 2011
2011 Capstone Project, University of Louisville, Created by Jordan Colburn, Paul Faget, and Seth Tucker. Using a TL494 motor control chip, an input audio signal is turned into PWM to switch a MOSFET bridge. This in turn switches a flyback transformer at 35VDC. The resulting output is a stream of plasma that produces audio. The system was built incorporating an adjustable active crossover network that allows you to connect another speaker to function as a woofer to producs bass frequencies. The resulting audio would be much more impressive if a flyback with a higher resonance frequency were found.
- 37 likes, 2 dislikes
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Uploader Comments (ELGEvilLawnGnome)
Top Comments
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congratulations, you are well on your way to becoming the arch-nemesis of a superhero
9 months ago 7
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@YouXCube The Tuss- Death Fuck Mental Beats (alias for Aphex Twin)
BTW extremely nice project you've built!
1 month ago 3
All Comments (26)
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So that's what I call electronic music :D
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the dude who helped make this is named paul "faget"
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WANT!
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You must have a lot of time and money on your hands.
Peaceandwellness 3 hours ago
@Peaceandwellness
Or, I'm an engineering student that had to build a senior project. We have have neither time, nor money. This thing only cost about $60 to build.
ELGEvilLawnGnome 3 hours ago
Very nice setup including the sound cone used on the plasma speaker. I'v uploaded and built a few setups using this design, plans can be found at hvlabs.com under plasmasonic speaker
hvlabsdotcom 1 month ago 2
@hvlabsdotcom We used a similar driver circuit, except we only single tapped the flyback. Also, we had issues running in pulse steering mode. I'm actually not a huge fan of the cone. I feel it added a good bit of distortion to the audio and decreased the available volume. The new version is omnidirectional.
ELGEvilLawnGnome 1 month ago in playlist Uploaded videos
@hvlabsdotcom I'm a huge fan of your projects by the way. They're a lot of fun to look at.
ELGEvilLawnGnome 1 month ago in playlist Uploaded videos
That's great. Any interest in uploading construction instructions?
jonathansindler 1 month ago
@jonathansindler
I've been meaning to for some time now, I've been very busy with grad school though. As soon as I have a bit of free time, and I remember to, I definitely will. I'd rather put up the newer version though. It performs a bit better.
ELGEvilLawnGnome 1 month ago