[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [TCML] Re: European Coil

Thank you!

Yes i was on robodock 2007. I was there on the first day with opening ceremony, so i misted the big end show of SRL. I sort of expected you there too, but since there was no lightning or tesla's acoording to the organizers i figured you would not be there.
In 2006 we performed there with maxiEMM, very nice place to perform !! There are some pictures and links to yuotube films on our website.
The whole plan was to have the premiere with EMM++ on Robodock 2008. When it turned out the festival was not gonna be, luckely Nemo turned up as an excellent place to do it. Only a month later and just around the corner of where robock usually is helt. 

EMM++ is quite straight foreworth. A fuse and relay box. A big ass 125KVA 10kv 3 fase transformer with a "soft start". 3 fase bridge rectifier. a Hv relay, A DC reactor and a arsg.
So nice everything is basicly to heavy to lift, so you don't get temped to lift it yourself :) So another heavy transformer is no problem at all.

Nice to hear your opinion on the toroid. We thought of many different ways of making it. The finite element method in my opinion is just the most convenient and good looking way to built a big toroid.

BTW, the same weekend we made it to tv with our coil, the mythbusters episode made it to dutch television too. 

Gl with NLL
Arjan

At 08:15 13-11-2008, you wrote:
>Hi Arjan,
>
>Your coil looked very much at home on top of the museum.  It captures the 'Metropolis aesthetic' quite nicely!
>
>BTW, the idea of using finite elements to comprise a top electrode is not mine; I stole it from Tesla's Wardenclyffe tower.  I am surprised that more coilers don't use this approach.
>
>Your coil appears to be capable of a variable-rate spark-gap.  Are you using a DC resonant charger or a current-controlled switching supply?
>
>Were you at Robodock 2007 by chance?  I was there with SRL.  It is sad that Robodock 2008 will only be in Second Life.   GL
>
>
>Arjan van der Schee wrote:
>
>>Thanks !
>>The idea of using tubing in topload came from greg indeed. The topload is big. 60cm bij 260 cm (24 bij 103 inch) and had to look beautifull. We take this appart with a bunch of hex bolts and end up with an easy to store bunch of 1/3 aluminium circles.
>>The whole build was never possible without the hughe amount of information from the tesla community. TCML, 4hv.org and all the induvidual websites. Thanks everybody for that !
>>We had only one option to test the coil before getting on to a truck to amsterdam, quite stressy. A NE555 kept popping in a switching supply. This limitted runs to a few seconds. Not the best way to tune a new coil ! The next test option was on top of Nemo.
>>This whole event was a nice combination between education and entertainment. Thursday we set up the coil on top of the science museum Nemo. The museum is packed with interactive displays where kids can find out how physics work. While we where setting up the coil on the the 20 meter high roofterrace with a big crane, klokhuis was filming an episode about the working of coils in general . Klokhuis is an kids program on national television that explain physics in a really nice way. So they start with a wire with current through it and see a compass move and go on to how transformers work. In the end bit they show the teslacoil being tested.
>>A photographer took the picture of the test and it ended up with the article on the front page of a national newspaper Trouw. The next day my phone wend grazy with news channels wanted to interview and take shots of the coil!! So on Saturday during museumnight in amsterdam 8000 people showed up at Nemo and the coil was shown on national television on several news channels. The night couldn't be any better !!
>>Inbetween the runs we went to the fence and explained to everybody that wanted to know, how the machine works. We could run the coil as long as we wanted, no more ne555 faillures !!
>>Here are some Youtube movies i found a few days later.
>>EMM++ from the street below:
>>http://nl.youtube.com/watch?v=k-ReX44TZUk
>> From the roof it self:
>>http://nl.youtube.com/watch?v=QFY5urw6SDU
>>Here it goes up to 250 bps around 40 KVA
>>http://nl.youtube.com/watch?v=zd2ul7zgF2Y
>
>
>_______________________________________________
>Tesla mailing list
>Tesla@xxxxxxxxxxxxxx
>http://www.pupman.com/mailman/listinfo/tesla

_______________________________________________
Tesla mailing list
Tesla@xxxxxxxxxxxxxx
http://www.pupman.com/mailman/listinfo/tesla