The Tesla Coil is a Air Core Resonant Transformer consisting of a primary coil and a secondary coil. The primary coil is the part of the device that resonates or vibrates which when vibrating gives of a very strong magnetic field that causes induction in the secondary coil. the magnetic field is caused by first the power from the 120 volt wall outlet is converted into 6500 volts by the transformer then the power flows into the capacitor where it gets amplified then moves along to the spark gap the spark gap acts like a switch without the spark gap the coil will not function it will just burn up your transformer next the power goes to the primary coil and causes induction in the secondary coil thus causes lighting or arcs to be transmitted out of the toroid or topload.

Step 1: Parts That You Will Need

The parts you will need to build a tesla coil:

1. 6500 volt 23 milli amp transformer found at amazing1.com

2. 10,000 volt capacitor found at amazing1.com

3. Spark Gap found at amazing1.com

4. PVC Pipe 5-6 inches wide 3 feet long Found At The Home Depot

5. Copper tubing (refrigerator tubing) 1/4th inch diamiter 30 feet found at The Home Depot

6. Toriod Found at Amazing1.com

7. # 24-26 enamaled magnet wire or just magnet wire found at electronixexpress.com
<p>How do you figure 250,000 Volts? You use a single 6500v Transformer and a single 10,000v capacitor. The transformer will charge the capacitors to 6500v and I don't see any multipliers, so this is a 6500 volt coil, 10KV max.</p><p>I have a Northrup Grumman 100KV transformer with 125KV capacitors which cost $8,000.00 and it only produces 100,000 volts, so.... this title s wrong.</p>
<p>The Tesla coil is the transformer from 6500 Volts to 250,000. That's what Tesla coils are all about, that's what they do.</p>
<p>yeah thats 250000 volts at 23 milli watts</p>
<p>it worked really well for me</p>
<p>thanks you sir </p>
<p><a href="http://how-to-build-a-tesla-generator.blogspot.co.nz/" rel="nofollow">http://how-to-build-a-tesla-generator.blogspot.co....</a></p><p>Great site here for tips and plans on how to build a tesla coil step by step</p>
candidate for a circuit diagram maybe?
<p>If you don't know about Tesla Coils - they do have a general and precise</p><p>schematic, you shouldn't be playing with high potential electricity fool!!</p>
<p>Wow, 5 years ago. I know they do now Rene, but back then I knew less and was interested in how they work. I would not try building something like this without knowing enough to do it safely.</p><p>As for the &quot;fool&quot; part, I'm guessing that is a joke or you are trolling, either way; heh heh heh &lt;slow clap&gt;</p>
second that.
third that <br>
fourth that xD
fifth that xD xD
sixth that<br>
I guess ill seventh that
This means I have to eighth that.
Yeah, he should add one.
<p><a href="http://how-to-build-a-tesla-generator.blogspot.co.nz/" rel="nofollow">http://how-to-build-a-tesla-generator.blogspot.co....</a> </p><p>Want to learn how to save hundreds of dollars per month on electricity bills. For a small investment of $47 you can get virtually 100% free power for the rest of your life! Click the link above for more information!</p>
seen these, just make sure that you are not wearing anything metal
are u using a mot?
i see from the picture that one of the rings in the primary coil is way to close to the other one, makeing it dangerous, and i do not even see th toroid in this picture, it seems more like an advertisement for that website he claims to get the stuff from.
does this tesla coil actually work , im doing this for a science project and i dont want it to explode in my face<br />
well iven if you had a tesla coil that did work, it would be exeedingly dangerous, you would have to make shure that none of the teachers have pacemakers, since the electricity, that will flow through the air will effect that. as well as giant warning labels that say do not touch!!!!! i would actually not reccomend this as a science project, because of how dangerous it is, but if you do make shure anyone around it or goes near it is well informed of the dangers
I know that it has been a while since this was posted, and quite a while since I last visited this page, however, I feel the need to point out that this Tesla Coil does not work and following these plans is dangerous. The author claims that he has achieved sparks that were a few inches in length. Unfortunately, given his apparent understanding of his device and given how poorly it was constructed, even these mediocre results seem somewhat far-fetched. At the moment, I am trying to communicate with an admin to have this instructable temporarily removed until it is made to be up to par with the community standards of this website. Posting dangerous instructions about topics which one does not completely understand not only does you disservice by slandering your name, but it also puts the entire community at risk. Attaching warnings such as &quot;IT WILL KILL YOU INSTANTLY THERE IS NO SECOND CHANCE!!!&quot; does not help.<br />
does the secondary coil have multiple layers of wire, or is it just one all the way through?
just one layer itsz hard as heck to do
It's not that hard but it takes a LOOOOOOOOOOOOOOONG time to do.
Please elaborate on the type of capacitor. Perhaps SKU of item on Amazing1.
Hey just one thing never put the Secondary Coils wire inside the pipe even the ends of it. It can burn out the coil.
I wasn't planning on that much money, thanks anyway!
Please join the Nikola Tesla Memorial Society. At <a rel="nofollow" href="http://apps.facebook.com/causes/315646?m=96aaaf39">http://apps.facebook.com/causes/315646?m=96aaaf39</a><br/>This Memorial is designed and ran by me.<br/>
how much did all of the supplies cost
this coil in general cost me 200 dollars USD Do you want a list of the parts with thier prices? if you do email me at teslatech@live.com
just a question, what are tesla coils used for and what can they do?
tesla coils were originally built by nikola tesla as a way to experiment with wireless power transmission (sending electricity without wires) but unfortunately the government went to war before tesla could finish his experiments and his funding ceased. although tesla did successfully transfer electricity wirelessly, today, tesla coils have no true practicality other than electrical companies experimenting with lightning or for an interesting hobby experiment
arent they used in electric toothbrushes to recharge them ?
no, thats just an air core transformer. they dont work off of resonance but rather induction.
do you think a capacitor like <a rel="nofollow" href="http://www.goldmine-elec-products.com/prodinfo.asp?number=G16864&variation=">this one</a> would work?<br/>
Do Not Use These I have just recently purchased 2 of these and the exploded on me.
Oh crud that is what I was going to use! (Not anymore!)
did you have them accuratly polerized?
yes, I emailed the company and told them that they need to be careful on what they say about their products. some one could get seriously injured if not properly informed. they also get very hot too and started to melt then I heard a very loud bang over to loud electrical discharges of my tesla coils spark gap.
i think that somewhere along the line there was a typo and these arent actually rated for 35kv but more like 3.5kv. btw, id like to see your coil, maybe you could post a video or even an instructable.
<a href="http://www.instructables.com/id/Step_By_Step_Plans_to_Building_a_250000_Volt_Tesl/">http://www.instructables.com/id/Step_By_Step_Plans_to_Building_a_250000_Volt_Tesl/</a><br/>
Some Diagrams would be nice!<br/>I cringe when you explain how to hookup the NST to the plug, If people don't know how to do that then they shouldn't be building this!<br/>Where are the pictures of it operating? it seems like a stupid question but I can't find them.<br/>Not a bad instructable. Well done!<br/>Really nice tesla coil design site with Tesla calculater! Very good!<a rel="nofollow" href="http://www.teslamap.com/guide.html">http://www.teslamap.com/guide.html</a><br/>
Ahhh.... We finally get some real pictures. Now that we have proof tht you actual attempted this project, can we have proof of the "250kV"? I look forwards to that. Of course, most of the images are not taken very well, and you did repeat the same image for some of the steps, but its better. Can you make your instructions a bit more descriptive please, and can you tell people real places to get the supplies, don't be anad for "amazing1". Good luck!
Ugh, this should be removed. It has already been said that all these pictures are from google, you have no proof that you made one yourself, and all you say to people is "lets work together on this, e-mail me" which doesn't help anything.
would it be safe to use that (10, 12 AWG??) solid copper wire that is used for the 117V AC in houses in the primary coil?
yes in the secondary coil there is very small amperages at very high voltages it is very safe you can try to eperament with bigger guages iv never tried it.
Please don't post such blatantly ignorant pieces of advice. He asked about the primary coil, and you answered as if he asked about the secondary coil. Your answer does not help him, you tell him to "eperament with bigger guages" on the secondary coil. Bigger gauges of wire used on the secondary coil will decrease its number of turns, and drastically change its resonant frequency. It won't work. You also give flawed advice that states that the secondary coil is perfectly safe. Wrong. You need to do some more research, and understand how Tesla Coils work, before handing out advice. Currently, it is you who needs advice. The reason you have never tried "it" is probably because you never even built a Tesla Coil. With such a primitive understanding of them, how could you have?