Plasma Arc speakers

merlin2069er · 1st May 2009, 02:21 AM

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

thoriated · 22nd May 2009, 05:18 PM

The famous Ionovac tweeter has its own website, which gives very good information and resources:

http://www.ionovac.com/

JoshuaTechnomage · 22nd May 2009, 05:39 PM

Wait, that plasma arc tweeter looks different from the plasma flame tweeters I have seen before.

Jeb-D. · 22nd May 2009, 06:54 PM

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.

champ04 · 7th June 2009, 04:35 PM

any companies using these things?

rastus · 8th June 2009, 02:49 AM

http://www.instructables.com/id/Build_A_Plasma_Speaker/

1st May 2009, 02:21 AM	#1
merlin2069er diyAudio Member Join Date: Sep 2008 Location: Toronto	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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22nd May 2009, 05:18 PM	#2
thoriated diyAudio Member Join Date: Nov 2003 Location: flyover country	The famous Ionovac tweeter has its own website, which gives very good information and resources: http://www.ionovac.com/

22nd May 2009, 05:39 PM	#3
JoshuaTechnomage diyAudio Member Join Date: Apr 2009	Wait, that plasma arc tweeter looks different from the plasma flame tweeters I have seen before.

22nd May 2009, 06:54 PM	#4
Jeb-D. diyAudio Member Join Date: Nov 2005 Location: SoCal	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.

7th June 2009, 04:35 PM	#5
champ04 diyAudio Member Join Date: May 2009	any companies using these things?

8th June 2009, 02:49 AM	#6
rastus diyAudio Member Join Date: Mar 2005 Location: QLD	http://www.instructables.com/id/Build_A_Plasma_Speaker/

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