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Old 1st May 2009, 02:21 AM   #1
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Default Plasma Arc speakers

I found these on Digg...

http://www.noiseaddicts.com/2009/04/plasma-speakers/


Here's a link to enjoy the music's review

http://www.enjoythemusic.com/magazin...ellavoilin.htm
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Old 22nd May 2009, 05:18 PM   #2
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The famous Ionovac tweeter has its own website, which gives very good information and resources:

http://www.ionovac.com/
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Old 22nd May 2009, 05:39 PM   #3
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Wait, that plasma arc tweeter looks different from the plasma flame tweeters I have seen before.
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Old 22nd May 2009, 06:54 PM   #4
Jeb-D. is offline Jeb-D.  United States
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It does indeed.

This looks more like a modulated stun gun. Or a mixture between a class D amp and a flyback converter. It uses a ground electrode. The plasma flame creates a corona by using a high intensity RF carrier, which doesn't use a ground electrode.

I'd like to build something like this. The design could probably be much improved. The 494 most likley isn't the best device for modulation. I'd take a look at some full range class-D modulation chips/topologies . Or, perhaps chips meant to drive flyback converters. Also, that output stage could benifit from a DRC snubber. I bet it has some voltage kick back issues as-is.
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Old 7th June 2009, 04:35 PM   #5
champ04 is offline champ04  United States
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any companies using these things?
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Old 8th June 2009, 02:49 AM   #6
rastus is offline rastus  Australia
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http://www.instructables.com/id/Build_A_Plasma_Speaker/
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