RE: [TCML] Beginning Tesla Design

["S&JY" <youngs@xxxxxxxxx>]

Taylor,

 

Here is an idea that might satisfy (& scare?) your teacher.  This came from
gary350@xxxxxxxxxxxxx and was published in this list in Dec 2007.

 

Replace your top load with a pie pan from your kitchen.  Put about 1/4 cup
of alcohol in the pie pan.  Not rubbing alcohol is contains water.  Buy some
alcohol from the paint store it is 100% alcohol.  Ignite the alcohol it will
burn a nice blue flame only about 4" above the pan.  Turn on the Tesla Coil
it turns into a 36" ball of what appears to be millions of micro size blue
sparks forming out of the pie pan.  When the alcohol burns away about 20
seconds the sparks go down to normal type TC streamers.  I have done this
with my 4" TC.



The idea would be to hypothesize what causes the spectacular changes when
the burning alcohol is excited with 100 KV of RF.  I doubt this has been
publicized in anything your teacher would be aware of.  If you do this,
please let this list know your results.  If this is for a science fair,
there are probably restrictions regarding 36 inch fireballs, etc., so you
may have to just display your apparatus and show photos of your experiment
done in the safety of your back yard.

 

Has anyone else done this?

 

--Steve Y.

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From: tesla-bounces@xxxxxxxxxx [mailto:tesla-bounces@xxxxxxxxxx] On Behalf
Of Taylor Skidmore
Sent: Monday, January 03, 2011 6:20 PM
To: Tesla Coil Mailing List
Subject: Re: [TCML] Beginning Tesla Design

 

Well, no harm involved. I really want to use this Coil for a science
fair project. My teacher, however, wants a project that really has no
publicized results, so I'm having a little trouble on that end. I was
thinking about something along the lines of adding a second toroid,
letting it sit atop the first, but I really don't know what I could
measure, or if that's a valid project at all.. Since I will be using the
Coil in the fair, my budget grows exponentially, as my parents are
suddenly willing to donate some money, heh. Any ideas?




On 1/3/2011 6:06 PM, Brandon Garretson wrote:
> Sorry Taylor, I didnt mean to throw you a curve ball there.
> What I was getting at is according to your TeslaMap output, your
> primary cap size is very close to resonant, which means running the
> coil in that configuration could create a condition that may cause the
> secondary voltage in your NST to rise to a point well over what it is
> safely rated to operate at and ultimately burn it out.
> Secondly, using just enough caps in the MMC to reach the desired
> capacitance, but ignoring the fact that they are rated for DC
> operation is likely to significantly shorten their lives (perhaps to
> just mere minutes).
> Im not saying that you need to spend a lot of money and build a museum
> piece, but you may find that by building it to the bare minimum that
> looks like it should work on paper could cause it to go up in smoke on
> its first test run.
> Perhaps a $65 investment on a more durable design would serve you
> better than $45 spent on burnt-out components.
> I may be wrong, these things can be strange beasts, perhaps it could
> last much longer than you need it to for the purpose its being built.
> I would just hate to see it die before you got a chance to demonstrate it.
> Ask a lot of questions and read through the TCML archives, there is a
> lot information here.
> Best of luck!
>
>> On Sat, Jan 1, 2011 at 7:38 PM, Taylor Skidmore<balt11t@xxxxxxxxx>
wrote:
>
>>> I'm not really sure how to respond to that, other than that my MMS is
being
>>> supplie by a friend. I don't want this to be as big as possible, but
rather
>>> a simple, small, economic design. I have approximately $45 to make this,
>>> not
>>> including my NST.
>>> On Dec 31, 2010 12:27 PM, "Brandon Garretson"<garretsontech@xxxxxxxxx>
>>> wrote:
>>>> Your primary cap looks a little small and close to resonant size, try
to
>>> get
>>>> it up just over 9nf like TeslaMap recommends for a static gap.
>>>> Also try to build it to handle at least 1.5 to 2 times your NST
secondary
>>>> voltage as the caps you will likely use are rated for DC.
>>>> My 12/60 powered coil MMC is rated over 30kv.
> _______________________________________________
> Tesla mailing list
> Tesla@xxxxxxxxxx
> http://www.pupman.com/mailman/listinfo/tesla

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