| Plasma speaker - Click HERE for Original Thread |
| deadlyvj |
This guy posted another video. I do not know all the info, but considering the large interest in the plasma tweeter, i thought this subject would have more discussion. Mated with a plasma tweeter, this set could have exemplary performance, again considering no moving mass for a extended range plasma speaker claimed 200Hz to 12 KHz.
Plasma speaker vid-2 |
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| Few |
I emailed the builder of the driver to ask for more details but so far haven't received a response. I wonder what limits the high frequency response to 12 kHz---it's not the mass of the diaphragm!
Few |
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| deadlyvj |
This is the response I got
"The upper frequency range is limited by the grade of ferrite material used & the proximity of the primary to secondary windings. " |
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| deadlyvj |
| He is giving out the plans. I think he said its fairly inexpensive. Some one should build one. I'm not electronically inclined. |
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| Few |
I requested that he send me some plans but apparently my request slipped through the cracks. I guess I could post another request but I don't want to hound somebody who is generously sharing information.
I don't have much experience with high frequency electronics so I'd be interested in determining whether it's something I could try out or whether it's complicated enough so that I ought to work my way up to it. I'm supposed to be working on my ESL project so I probably don't need another distraction!
Few |
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| deadlyvj |
If you look at the discussion below his video, there is a link to the plans.
He is going to make a kit for it, but it looks like he is trying to promote it as a visual show item, rather than a true audio performance product. Too bad. It sure does looks like it has potential.
Regards, |
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| Few |
Okay, I'm feeling pretty dense, but I don't see the link to the plans. Would you mind posting it here---or pointing me in the right direction?
I agree that it would be more interesting if it attempted to maximize fidelity rather than visual cool factor. Perhaps it could serve as the basis for something that aims to reach closer to 20 KHz with good performance. I'd be willing to give up a bit at the low frequency end of the spectrum. |
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| deadlyvj |
Looks like he removed that post.
:boggled: |
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| Few |
Bummer. Thanks for checking, though.
Few |
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| deadlyvj |
An update !!!,
I was able to get in touch with the grand master of plasma speakers "Dr. Alan Hill". Looks like there is a new speaker in the works ... frequency extension from around 40Hz to 100KHz. :D
Regards,
VJ |
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| jaejin |
I have just seen the the youtube film.
really cool! |
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| CV |
VJ,
Do you have any more info at all on this? Will it use MHCD technology?
Best,
cv |
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| deadlyvj |
CV,
I do not have all the information on his new project.
Best, |
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| bear |
can you say limited SPLs?
_-_-bear |
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| OzMikeH |
It's no different in concept to the tweeter thread, except it's solid state. I'd love to see the circuit. The ferrite cored transformer is a big limitation.
I've seen 95dB from an open arc and tesla coil type OPT. With horn loading you could easily get it to a useful volume.
Air discharge is quite quiet, adding the ground electrode makes it much louder. |
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| Smithjoe1 |
I've been looking into this and there are some problems with creating it, but the schematics are mostly there.
http://web.mit.edu/dzshen/www/home_...alPaperV1_3.pdf has a pretty good rundown on the ins and outs of the solid state plasma. I'm just a little stuck trying to undetstand the delay shift and the unlabled device between the XOR gate and the VCO on the chip. |
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