Plasmatweeter - Page 9 - diyAudio
Go Back   Home > Forums > Loudspeakers > Planars & Exotics

Planars & Exotics ESL's, planars, and alternative technologies

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 21st October 2007, 11:36 AM   #81
OzMikeH is offline OzMikeH  Australia
diyAudio Member
 
Join Date: Mar 2007
No politics please.

George, please continue sharing your knowledge.
  Reply With Quote
Old 24th October 2007, 01:54 PM   #82
izoe is offline izoe  United States
diyAudio Member
 
Join Date: Oct 2007
Sorry I am not an electronics person but I am very interested, does anyone have simplified plans that I could build a pair of these?
  Reply With Quote
Old 2nd November 2007, 08:02 PM   #83
diyAudio Member
 
Join Date: Feb 2007
Hi all,
To your discussion I come perhaps later.
Here is the picture as the Tweeter now looks.
Click the image to open in full size.


The case is warm and you should not put up something on it because of the ventilation
And this is the schematic without ac
It works!
Click the image to open in full size.

Der Schaltungs-Null wird nicht an die Gehäuse-Masse angeschlossen =
The circuit is not zero-to-earth housing (?)

Der NF-Null wird nicht an die Gehäuse-Masse angeschlossen =
The NF-nil is not linked to the housing-earth (?)

Eingang vom Lautsprecher =
Input from speaker coming

Everything else has really been clarified.
Many greetings,
George
  Reply With Quote
Old 2nd November 2007, 08:46 PM   #84
diyAudio Member
 
Join Date: Feb 2007
Haze-deduction
Click the image to open in full size.

Backside

Click the image to open in full size.
  Reply With Quote
Old 3rd November 2007, 07:41 AM   #85
diyAudio Member
 
Join Date: Feb 2007
The link above does not work, so once again
Click the image to open in full size.
  Reply With Quote
Old 26th November 2007, 05:38 AM   #86
Serge66 is offline Serge66  Switzerland
diyAudio Member
 
Serge66's Avatar
 
Join Date: Nov 2007
Location: Canton of Jura
Hi Guys,
I just stumbled onto this thread.

Goodness me!!! This is amazing stuff!

Forgive my ignorance. Is the plasma generated out of air?
I would love to see and hear this tweeter.

I plan to go back Home next year (2008). Home being Switzerland, maybe I can plan a trip to meet George.

I'll be back on this thread to check on the progress of everyone. Thank you. Truly amazing.

Serge
__________________
I simulate, therefore I am.
  Reply With Quote
Old 27th November 2007, 04:56 AM   #87
Serge66 is offline Serge66  Switzerland
diyAudio Member
 
Serge66's Avatar
 
Join Date: Nov 2007
Location: Canton of Jura
Default Questions

Greetings All,

I have a couple of questions:

1. What is the resistance of an electric arc or plasma arc?

(What is the factor limiting the current in that arc?)

2. Is there a frequency at which the air is more easily ionized?

This project is awesome.

Bye for now.

Best Wishes,

Serge
__________________
I simulate, therefore I am.
  Reply With Quote
Old 29th November 2007, 02:35 PM   #88
OzMikeH is offline OzMikeH  Australia
diyAudio Member
 
Join Date: Mar 2007
1: it changes, high impedance until the arc forms then it reduces.

2: these all run about 27 MHz. the frequency does not matter much on how the air is ionized. it is the very high voltage which makes the spark happen. About 25,000 volts at 100 watts for 1 inch.

it is a self oscillating amplitude modulated radio transmitter combined with a tesla coil. Go do some research on those and you will start to understand how it works.
  Reply With Quote
Old 29th November 2007, 11:13 PM   #89
Serge66 is offline Serge66  Switzerland
diyAudio Member
 
Serge66's Avatar
 
Join Date: Nov 2007
Location: Canton of Jura
Thanks OzMikeH
__________________
I simulate, therefore I am.
  Reply With Quote
Old 30th November 2007, 01:18 PM   #90
p3142 is offline p3142  Germany
diyAudio Member
 
Join Date: Sep 2004
Location: karlsruhe
There are reports that HF frequencies too low may result in noise, but that seems to have nothing to do with the ionization efficiency.
The 27MHz commonly used is one of the few frequency bands you are allowed to operate in. Remember that you essentially have a transmitter and although you might like to listen to good music, you dont have to enable people 5000miles away to listen to the same music in their radios by operating your tweeters in the wrong band.

Regards,
Peter
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Plasmatweeter diy (germany?) hotlipswetpants Planars & Exotics 1 30th July 2004 04:18 PM


New To Site? Need Help?

All times are GMT. The time now is 01:14 PM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright ©1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2