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A DIY kit for a solid-state Tesla coil that plays music, shoots 2-foot-long sparks, and teaches you electronics.
A DIY kit for a solid-state Tesla coil that plays music, shoots 2-foot-long sparks, and teaches you electronics.
A DIY kit for a solid-state Tesla coil that plays music, shoots 2-foot-long sparks, and teaches you electronics.
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928 backers pledged $169,155 to help bring this project to life.

Almost ready to go

Dear Backers,

We're well settled into our space at Artisan's Asylum. Lately we've been perfecting the workflow for the packaging process: cutting parts from reels, organizing them into smaller containers, heat-sealing parts into plastic bags.

This is what parts for 1000 Tesla coils look like!

We're all ready to go... except the toroids still aren't here. We've been in constant contact with the manufacturer of the toroids, and the simple fact of the matter is that it takes a long time to machine hardened steel dies. Due to problems with his initial design, our manufacturer has revised his process and made new dies. He's now using a two-part die which is slightly larger and pre-forms the outside of the toroids with a secondary die. The inside of the toroid comes out smooth, but the outside has some wrinkles. Some of you have been making suggestions in the comments on how to fix the problems with the toroids-- we've forwarded these on to the manufacturer and he says the comments have been helpful.

Here's all 350lbs of his initial die: 

The initial toroids came out awfully wrinkly: 

The manufacturer anticipates that it will be another few weeks before he gets good results. Hopefully that will be the end to his problems. In the meantime, we will start shipping kits as fast as we can package them, starting this week, and we'll send toroids along as they arrive. Let us know if you would NOT like your kit to be shipped without the toroid. We don't recommend running with any topload other than our toroids, so you should wait until the toroids arrive before running your coil anyway. 

 Several weeks ago, we finished shipping all the circuit boards. If you have not yet received your circuit boards, let us know. As soon as we get some kits out the door, we'll open up the "complete your kit" option on the website. There isn't much of a point in taking these orders while we still have hundreds more that haven't yet been shipped.

In other news, we were invited to a Tesla Tech fair at Dartmouth College (which you can read more about on our blog), and we found that Pelican cases with pick-n'-pluck foam inserts make a fantastic carrying case for oneTesla. 

As always, feel free to ask questions on our forum, or send us a message on Kickstarter. Happy coiling!


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    1. John Robin Dierauer on June 1, 2013

      Any good news for the final shipment? I was working in an electronic company for a long time and I know you are having a hell of a job. Good luck and it's worth the experiance!

    2. Andrew Holmes on May 25, 2013

      Guys, you have only been shipped a circuit board if you pledged at the $30/$50 circuit board only tiers. Calm your jets.

    3. Missing avatar

      jmcdo on May 24, 2013

      Please ship everything together. I can wait!
      PS. I did not receive a circuit board.

    4. alexi on May 21, 2013

      I am also wondering if I will receive my circuit board soon. This was estimated for delivery in February. I have not received anything to date.
      Thanks and I hope things are coming along soon. :)

    5. Missing avatar

      Randy Main on May 15, 2013


      Who should I contact if I did not receive my circuit board?


    6. Matthias Lange on May 14, 2013

      Any chance that you can start shipping this month?

    7. oneTesla 2-time creator on May 7, 2013

      The keyboards we use are made by M-Audio; they have the option of wall adapter or USB power.
      We've run them off wall adapters without trouble, but usually we just hook the keyboard up to a laptop.

    8. David Gaipa
      on May 7, 2013

      I ordered a case just like that and I already have it here. I would also like to ask what keyboard you are using and is it USB, wall adapter or battery powered?

    9. Dave Horner on May 7, 2013

      "Several weeks ago, we finished shipping all the circuit boards. If you have not yet received your circuit boards, let us know. "

      I have not received anything yet. Please send me what I am supposed to have by now.

    10. James Bailey
      on May 7, 2013

      Oh and that pelican case sold out in less than 24 hours (of the link you sent anyway)

    11. James Bailey
      on May 7, 2013

      I'd love to make an interim toroid while we're waiting for the issues to be sorted out! Do you think you could provide instructions on how to create just the right size/shape out of aluminium foil (I presume it needs to be a specific capacitance)?

    12. Ronald T. Beck on May 6, 2013

      Well, there aren't any sharp edges, so a wavy one will work as well as a smooth one. It just won't look as nice. I usually lay a sharp wire on top of a toroid anyway. The toroid gives a top capacitance that stores the charge and shields the secondary from flash-over. A single sharp point lets the spark break out at a lower voltage, and mostly in the direction of my choosing.

    13. oneTesla 2-time creator on May 6, 2013

      Everyone who doesn't want their kit shipped in two parts: your requests have been noted; we'll ship everything together.
      @Dana: If you ordered the full kit nothing has been shipped yet; otherwise, we'll look into it.
      @Ira: You can make a stopgap toroid by putting some aluminum tape on a 2x8" inner tube; no guarantees on the tuning but it will work.
      @Stephan: Check a few posts down, I posted an Amazon link.
      @Ronald: Yup, this is the first time to our knowledge that stamped toroids have happened. Spinning is a lot more conventional and tested, but for something high volume and low cost such as what we're attempting, stamping is really the only way to go.

    14. Ronald T. Beck on May 6, 2013

      I don't think I have ever seen an aluminium toroid that big pressed out. Everything I've seen (6" to 6') has been spun to shape with a pressure roller over a form.

    15. Stephan H. Wissel on May 6, 2013

      My set will be donated to the schools where my kids are - so presenting them in a Pelican case would be awesom. Please share a link/the part number, so I can get some
      :-) stw

    16. Dana Good on May 6, 2013

      Hi team,

      We have not received anything. Please send the circuit board now. We will wait for the other parts to be available. Thanks.


      Dana Good & Jeff Howbert

    17. Missing avatar

      Jerry Gentile on May 5, 2013

      Hello team, per the update 13 I would like to leave a quick note - I would prefer to have everything delivered at one time rather than portions at a time. I have not yet received anything.
      It seems like you are learning some valuable lessons which makes this a great project for all of you! I wish you continued success on this project and others in the future - keep up the great work and invention!

    18. James Bailey
      on May 5, 2013

      I think it's great that you're shipping them separately, I for one really would like to get soldering as soon as possible! Hope shipping the toroids doesn't leave you out of pocket!

    19. Eden
      on May 4, 2013

      Please don't ship mine until you have all the parts. And I suggest making that the default option so you guys don't kill yourselves with extra shipping costs and effort. Let anyone who wants separate shipments request that as a special option.

    20. Ira Burton on May 4, 2013

      Great update, thanks! I hope your finals went well. Any chance that you could publish instructions for rolling our own toroid in the mean time? I think I remember seeing somewhere that the kit when first listed was going to ship with a styrofoam toroid that we would have self wrapped with aluminium foil. It would be a nice stop gap while waiting for the much nicer stamped part.

    21. oneTesla 2-time creator on May 4, 2013

      @Tristan: correct.

    22. Tristan on May 4, 2013

      Sorry, just to be double double clear - those that ordered the _full_ tesla coil kit would not have been shipped a board yet right ?

    23. oneTesla 2-time creator on May 4, 2013

      They've only been shipped to backers who ordered board sets.

    24. Missing avatar

      on May 4, 2013

      For clarification, when you say that you have shipped the circuit boards, do you mean that they have been shipped to all backers receiving a board [board only + kits] or to all backers receiving only circuit boards?

    25. oneTesla 2-time creator on May 4, 2013

      @Bob, and anyone else whose wondering about their circuit boards: message us with your address, and we'll check our shipping records and tracking numbers.

    26. oneTesla 2-time creator on May 4, 2013

      So the case we're using is this thing: which is not a real Pelican, but works pretty well. We had to add a bit of extra foam to prop up the coil though.
      @John Duncan: send us a message with your address, and we'll check our shipping records.

    27. Missing avatar

      Bob Walance on May 4, 2013

      I have not received the circuit board(s) or anything else. Should I have?

    28. Matthias Lange on May 4, 2013

      Thanks for the update and thanks for start shipping without the toroid!
      I request the model number of that Pelican, too. :)

    29. David Gaipa
      on May 4, 2013

      I second the request for the model number on that Pelican! I am fine with the unit shipping without the Toroid. I have one sitting here from the ebay supplier you mentioned. I am ready to make some sparky music!

    30. Missing avatar

      John Duncan on May 4, 2013

      I have not received anything to date.

    31. John on May 4, 2013

      Very, very nice, thanks for the update. Would you mind updating your post with the model number of that Pelican!!