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Author Topic: Spark Gaps the hard workers. The best materials.  (Read 9859 times)

Jeg

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Spark Gaps the hard workers. The best materials.
« on: April 21, 2014, 02:27:56 PM »
Hallo friends.

As the situation is, spark gaps are a 'need' in our research work. I am looking for simple materials easy to find for making a static spark gap working endlessly without problems. I want something that can handle all the heat with only help of an air blower. My copper pipe electrodes seems to work well with the help of the blower, but i am sure that there are more materials that can handle more power without melting the metals. Do you have something to propose? Any help would be appreciated. 

Tnks
Jeg

mscoffman

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Re: Spark Gaps the hard workers. The best materials.
« Reply #1 on: April 22, 2014, 02:32:45 AM »
Tungsten metal with Spherical points  - Tesla said this.

Cap-Z-ro

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Re: Spark Gaps the hard workers. The best materials.
« Reply #2 on: April 22, 2014, 03:57:33 AM »
I'd almost swear I dated a girl with those...oh, THOSE spark gaps.

Jeg

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Re: Spark Gaps the hard workers. The best materials.
« Reply #3 on: April 22, 2014, 07:26:47 AM »
Mscoffman thank you. I wonder where someone can find such a material. Do you know if it is a hard or soft metal ? Is there any device or something where I could find it?

Capzro  ;D ;D

Neo-X

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Re: Spark Gaps the hard workers. The best materials.
« Reply #4 on: April 22, 2014, 11:21:51 AM »
@JEG

Try this solid state tesla coil if you have a problem in spark gap  :)


Jeg

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Re: Spark Gaps the hard workers. The best materials.
« Reply #5 on: April 22, 2014, 12:21:57 PM »
The problem starts when you need hv and high current together. I have tried in the past cascading mosfets but over some 2000v I had some problems like explosions :D

I really hate spark gaps. What about this gas discharge tubes of Don's? I think i have to reconsider the more mosfets solution.   
On the other hand, spark gap is raw power. You can feel it to your bone!

Thanks
Neo-x

Neo-X

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Re: Spark Gaps the hard workers. The best materials.
« Reply #6 on: April 22, 2014, 01:24:40 PM »
@JEG

Try IGBT i know it can handle high voltage, high current and it has fast switching speed. You can use the second picture for teslacoil circuit and replace the transistor with IGBT :)

Jeg

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Re: Spark Gaps the hard workers. The best materials.
« Reply #7 on: April 22, 2014, 02:19:19 PM »
Igbt is partially a good solution but again it is not as when a gap is firing! By the way, both of your attached images have mistakes.  But as an idea is fine and very common in SSTCs. Thanks