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Forums
4hv.org :: Forums :: Tesla Coils
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Secret PIRANHA-II files are released

 1 2 3 
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Marko
Mon Aug 27 2007, 11:16PM
Marko Registered Member #89 Joined: Thu Feb 09 2006, 02:40PM
Location: Zadar, Croatia
Posts: 3145
Toroid is generally proffered simply because it's shape works better in preventing breakout from top turns.
Other than that, it can be made out of corrugated Al pipe, much easier than a sphere wink
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Electroholic
Tue Aug 28 2007, 02:35AM
Electroholic Registered Member #191 Joined: Fri Feb 17 2006, 02:01AM
Location: Esbjerg Denmark
Posts: 720
but the multi ball toploads are easily tunable.
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Steve Conner
Tue Aug 28 2007, 08:55AM
Steve Conner Registered Member #30 Joined: Fri Feb 03 2006, 10:52AM
Location: Glasgow, Scotland
Posts: 6706
All I have to say on the subject is this:
1188291325 30 FT30216 Turbotriodal
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Marko
Tue Aug 28 2007, 11:33AM
Marko Registered Member #89 Joined: Thu Feb 09 2006, 02:40PM
Location: Zadar, Croatia
Posts: 3145
All I have to say on the subject is this:

More balls = more power?
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Terry Fritz
Sun Sept 02 2007, 04:31AM
Terry Fritz Registered Member #393 Joined: Tue Apr 18 2006, 12:30AM
Location:
Posts: 297
Hi,

Hahhaa! I have been surprised at how "late" the ball terminal idea has come to be accepted...

Link2

Maybe I should have made a better page you did not have to dig through... mad But my local pal Dave was willing to give it a try amazed

Link2

Link2

Link2

Link2

I think it was almost as an important of a new idea as the SISG and the PIRANHA drive smile

But "new" ideas are slow to be accepted now, so it is cool wink

I knew that "PIRANHA" was "wayyyy ahead"... And I knew it would take time to "sink in" out there... cheesey

But your are all "coming home" now smile

Cheers,

Terry



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Hazmatt_(The Underdog)
Sun Sept 02 2007, 06:02AM
Hazmatt_(The Underdog) Registered Member #135 Joined: Sat Feb 11 2006, 12:06AM
Location: Anywhere is fine
Posts: 1735
I'll 'come home' after I'm done asking serious questions about SGTC systems like:

thurough secondary investigation - working on now
A.C. Resistance investigations - working on now
Load capacitence and fall of Cself
Spark investigation, including inductance of the spark (because all conductors have inductance)
primary tank optimization
optimal terminal capacitence investigation
primary power source optimization (LTR) - finished
1188712930 135 FT30216 Secprofilesch
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Terry Fritz
Sun Sept 02 2007, 06:34AM
Terry Fritz Registered Member #393 Joined: Tue Apr 18 2006, 12:30AM
Location:
Posts: 297
"I'll 'come home' after I'm done asking serious questions about SGTC systems like:"...

You might need to get familiar with, and maybe even improve upon, ScanTesla...

Link2

It has "the power" to do "your bidding"... A simple open source C program that you can change as you please if you need. It has the modeling tools and "scan" ability to find the best combinations of "all the stuff"...

it is sort of "technical". But I can help you figure it out.

Terry

I am all "home" now wink) But Finn and Daniel are up to something "BIG" amazed
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Steve Conner
Sun Sept 02 2007, 10:29AM
Steve Conner Registered Member #30 Joined: Fri Feb 03 2006, 10:52AM
Location: Glasgow, Scotland
Posts: 6706
Yeah, Hazmatt, the SGTC was "solved" a couple of years ago and we all moved on to studying DRSSTCs. You can analyze the Piranha coils with the same theory as conventional SGTCs, though. They are just SGTCs with a static gap that has a very reproducible firing voltage and very low losses.

I've no doubt that the ball terminal works great, I just think it looks ugly. Who wants a Tesla coil that looks like a giant water faucet? wink
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Coronafix
Sun Sept 02 2007, 12:27PM
Coronafix Registered Member #160 Joined: Mon Feb 13 2006, 02:07AM
Location: Melbourne, Australia
Posts: 938
Terry Fritz wrote ...


You might need to get familiar with, and maybe even improve upon, ScanTesla...


OMG Terry, I don't think I've ever seen a more user unfriendly program.
No offense, I may stick to Classic JavaTC.
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Hazmatt_(The Underdog)
Sun Sept 02 2007, 05:47PM
Hazmatt_(The Underdog) Registered Member #135 Joined: Sat Feb 11 2006, 12:06AM
Location: Anywhere is fine
Posts: 1735
Above all I'm more interested in HOW you guys are arriving at your answers, especially for the highly non-linear aspects of the coil like A.C. resistance and the real Q of the coil. The calculated Q of a coil from the D.C. resistance is not correct.
A.C. resistance is difficult to predict because of skin effect, proximity effect, charge mobility, skin depth, length of conductor, and local charging effects, these determin the real Q.

I need to know how these calculations are made for my paperwork, that's why I'm looking for things like source code, I need the why's and how's because they are vastly more important then a program that does it for me. It wouldn't be college research if I put it all into a program and had it solve the problem. So I am thankful for the source code.

Other then that, I'm trying to get a handle on the most optimal primary LC match and calculating coupling from the position of the coils, what a stress job that is.

I will believe the SGTC is solved when I have "The Book" in my hands. So far all I see are a lot of scattered puzzle pieces and linear approximations, and unfortunately I want to know more.
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