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Old 7th April 2008, 07:12 PM   #11
Few is offline Few  United States
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Bummer. Thanks for checking, though.
Few
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Old 25th May 2008, 07:33 AM   #12
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Default Update

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.
Regards,
VJ
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Old 28th May 2008, 02:06 PM   #13
jaejin is offline jaejin  Sweden
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I have just seen the the youtube film.

really cool!
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Old 29th May 2008, 02:19 PM   #14
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Default Dr Hill's latest

VJ,
Do you have any more info at all on this? Will it use MHCD technology?
Best,
cv
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Old 30th May 2008, 01:48 AM   #15
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Default PS

CV,
I do not have all the information on his new project.
Best,
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Old 19th June 2008, 05:49 PM   #16
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can you say limited SPLs?

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Old 21st June 2008, 10:31 PM   #17
Dalus is offline Dalus  Netherlands
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--> http://4hv.org/e107_plugins/forum/fo...opic.php?41461
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Old 21st June 2008, 11:11 PM   #18
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Quote:
Originally posted by bear
can you say limited SPLs?

_-_-bear



Meh,Ya just need more power.
http://youtube.com/watch?v=3ff_AXVlo9U
It's quite loud!
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Old 25th June 2008, 11:02 AM   #19
OzMikeH is offline OzMikeH  Australia
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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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Old 4th July 2008, 05:42 PM   #20
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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_f...lPaperV1_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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