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Pictures from the 9th Uk Teslathon, Cambridge.

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Unread postAuthor: MaxuS the 2nd » Tue Dec 23, 2008 7:00 am

This ones an SGTC, just because it's my first.

I'd love to build an SSTC and then a DRSSTC, but I don't entirely understand how they work and which components to use.
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Unread postAuthor: MaxuS the 2nd » Fri Jan 02, 2009 4:40 pm

Played around with the coupling and tuning. Still needs a bit of a tune..
The nice guys over at 4hv.org helped me with the secondary - primary arcing. Problem was a badly grounded (ungrounded infact) secondary.

Fine tune next, but I think I'm pretty close.
[youtube]http://www.youtube.com/watch?v=AtfmrurkMA0[/youtube]
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Unread postAuthor: rp181 » Fri Jan 02, 2009 4:46 pm

That is wonderful
I agree =p
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Unread postAuthor: MaxuS the 2nd » Fri Jan 02, 2009 5:08 pm

Hahaa, indeed.

Gotta love the look of streamers :P
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Unread postAuthor: john bunsenburner » Fri Jan 02, 2009 5:09 pm

A dumb question from an amature: how exactly does a tesla coil work and does it have anything to do with a Van de Graaff generato, or am i way of?(excuse the little kowlage of an 8th grade student that has not had much more phsics than discussing why a ballon stuck to the wall when you rubbed it with a russian idiot that doesnt know what exactly papaer is(and him an sodium hydroxide DO NOT go together well...))
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Unread postAuthor: rp181 » Fri Jan 02, 2009 5:24 pm

Van de graff's work by taking electrons from one thing, and giving it to another. A van de graff is a static generator. a Tesla coil is a transformer. Its like any transformer in your house, but it steps voltage up, with no core. look at wikipedia =p
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Unread postAuthor: MaxuS the 2nd » Fri Jan 02, 2009 5:27 pm

Indeed.

Air Cored Resonant Transformer.
Turns lower voltage/Higher current into Higher voltage/Lower current.

As rp181 said, it works just like any other step-up transformer.
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Unread postAuthor: john bunsenburner » Fri Jan 02, 2009 5:38 pm

o ok, thanks for the clarification
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Unread postAuthor: dudeman508 » Fri Jan 02, 2009 7:18 pm

you should shoot a metal bullet next to it
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Unread postAuthor: rp181 » Fri Jan 02, 2009 7:30 pm

It would need to be grounded, or it would instantly go to the tesla coils potetntial.
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Unread postAuthor: jonnyboy » Fri Jan 02, 2009 7:59 pm

rp181 wrote:It would need to be grounded, or it would instantly go to the tesla coils potetntial.

It needs to be grounded or it will do what?
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Unread postAuthor: rp181 » Fri Jan 02, 2009 8:16 pm

It wont arc to the bullet, aside from a very small brief spark to bring the bullet's charge up to the output. If the bullet was grounded, then it would arc and you would have deal with seeing a projectile in the dark with 'lighting' :D
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Unread postAuthor: psycix » Sat Jan 03, 2009 3:01 pm

rp181 wrote:It wont arc to the bullet, aside from a very small brief spark to bring the bullet's charge up to the output. If the bullet was grounded, then it would arc and you would have deal with seeing a projectile in the dark with 'lighting' :D

Yep.
It would be awesome to have a metal sphere slinging around (circular, around the TC), hanging on a conductive and grounded wire.
The sparks would always be directed to the ball and their direction keeps rotating.
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Unread postAuthor: rp181 » Sat Jan 03, 2009 7:26 pm

Have you seen tesladownunder's site? he put a rotating pole on top of several of his coils. It looks stupid in real life because of the slow rotation, but the long exposure photo's are great.
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Unread postAuthor: psycix » Mon Jan 05, 2009 7:41 am

Wow thats a great site!
Impressive pictures.
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