How to make Simple Tesla Coil

How to make Simple Tesla Coil. Simple solid state Tesla coil also called slayer exciter circuit (A Slayer Exciter is an air-cored transformer that steps up a very low DC voltage to a very high AC voltage) Its is a simplest Tesla Coil and class 8th to above students can build under parents or teacher supervision.

What is Tesla Coil? A Tesla coil is an electrical resonant transformer circuit invented by Nikola Tesla around 1891. It is used to produce high-voltage with low-current and high frequency of alternating-current electricity. Tesla experimented with a number of different configurations consisting of two, or sometimes three, coupled resonant electric circuits. Read more.

What is Tesla Coil? A Slayer Exciter is an air-cored transformer that steps up a very low DC voltage to a very high AC voltage

In this post we only tell you list and diagram, construction of this project can be learn via video tutorial

Material.

  1. Transistor 2n2222
  2. LED
  3. copper wire 26 to 30 gauge
  4. PVC pipe
  5. connecting wires
  6. Bread board
  7. 9V battery

 Diagram.

Simple solid state Tesla coil also called slayer exciter circuit diagram

Simple solid state Tesla coil also called slayer exciter circuit diagram

 

Watch How to make Simple Tesla Coil from PSC YouTube channel

(Note: Please click on closed captions for English subtitle)

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Warning: The Slayer exciter creates an electromagnetic field that may negatively affect electronic equipment

Updated Video:

(Note: Please click on closed captions for English subtitle)

 

175 Responses

  1. Gianmarco Peña says:

    nice… what’s the diameter of the tube?????

  2. Gianmarco Peña says:

    i`m sorry men, i forgot…. what does “copper wire 26 to 30 guag” mean??? it`s the gauge of the wire? how long is the tube or how many spins are in the coil?? i don`t speak english, jejejeje….. THANK’S

    • Abdul Rauf says:

      yes it’s gauge
      you have to make 3 to 4 hundreds turns around the tube.

      • نعمان نعیم نعیم says:

        dear there is been done a mistake by you habab the negative of the led is connected to emmiter but you say the positive is connected to emmiter revise the video and see, thanx

  3. xmen says:

    I use 28 AWG wire and set up a same circuit as u mention but it’s not working not a single small LED is glow,can you help me why it is happen

  4. Aarsh Patel says:

    please can u tell me which type of bulb u used in the video to test the tesla coil (designed like CFL) ???
    How much watt or volt it requires????

  5. Aarsh Patel says:

    pleas tell me as soon as possible….

  6. Anudeep chinna says:

    please send ppt of simple tesla coil

  7. Abid says:

    very nice to see your detailed experiment and want to learn more from your experience.

  8. Yohanes Kristanto says:

    hey, thank you so much for sharing your info.. I have a question tho, can I use thicker wire? 24 or 25 gauge? thank you brother!

  9. Ýõgéñdrã Sólãñkí says:

    Hey bro. Which bulb have u used in this project bcoz I m using CFL of 5 watt then it is not working and also the LED is blinking in inverted coil so pls suggest me
    My email- yogendraslnk786@gmail. Com

  10. Aditya Mittal says:

    Sir, I have also made a tesla coil but it is not working, could you have a look and check what’s wrong in it please please please ? led is glowing but bulb is not lightning ?? I have attached pictures so that you could have a look

  11. Aditya Mittal says:

    Sir, I have also made a tesla coil but it is not working, could you have a look and check what’s wrong in it please please please ? led is glowing but bulb is not lightning ?? I have attached pictures so that you could have a look

  12. Havi Nguyen says:

    Please can someone tell me what I did wrong or how I can fix this? Please!!!! I’m doing this for a project so please reply as soon as possible!!!

  13. Havi Nguyen says:

    Here are the pictures of my project. How can I fix this and make it work? Please as soon as possible!!!

  14. james says:

    when the led is on, what does that mean???

  15. P'itam Chettri says:

    capacitor for primary coil is not used why???

  16. mohd. zaki says:

    what is the dimensions of PVC pipe??

  17. mohd. zaki says:

    what are the dimensions of PVC pipe??

  18. Abhishek Angale says:

    Can I use a kn2222a transistor?

  19. colin hough says:

    why do you not have a capaciter or is that only for spark gaps

  20. colin hough says:

    and do you need a light

  21. গোধুলির আকাশ says:

    what kind of wire can i use on primary & secendry ……
    &
    how many turn on primary & secendry ?
    can i use 9 volts battery (not full charge )

  22. Kamruzzman ovi says:

    my circuit is working but led id lighting and energy is not working . what can i do now ?

  23. Yasir Ali says:

    sir please can you tell the theory of operation of this project. i need the detail for my lab project.

  24. Aqib Hussain says:

    Salam. I have made this circuit. But it doesn’t work. I have tried both methods(with and without breadboard). The transistor gets very hot. But the led won’t light up neither will the coil work. Please help me sir. It’s urgent.

    • Aqib Hussain says:

      Please help me out. I really need this urgently. I will be most grateful. Thanks

      • Aqib Hussain says:

        Salam. Update: I can get the led to light up but the bulb doesn’t light up when I take it near the coil. I have almost 300 turns on the larger coil and 3 turns on the smaller one.

        • Do-Science says:

          try to invert 2nd coil then check it

          • Aqib Hussain says:

            Thanks for replying :).
            I’ve done that still doesnt work. I used a 26 guage copper wire for both coils. The larger coil has atleast 300 turns(maybe a little more). For the smaller coil I’ve tried with 2 or 3 turns one at a time. The pipe I used is of half inch diameter. Looks thinner than the one you used though. I ‘ll be waiting for your kind and helpful reply sir.

          • Do-Science says:

            please try an other transistor some time it doesn’t work
            please see this video https://www.youtube.com/watch?v=A8wwunusLW4

  25. Stefan Skowronek says:

    Dear Sir,
    I have build this circuit, and it doesn’t work. In the photo you can see the general setup and the connection scheme. The secondary coil is 0.3mm (about 28 AWG) with about 280 turns. I tried with 2, 3, 5 and 6 turns for the primary coil, also reversing the connection in each case. Non of it worked. What could possibly be going wrong?

    • Do-Science says:

      I see you primary coil’s 2nd terminal connected with other wire. it must be free and short in length

      • Stefan Skowronek says:

        Thank you for your reply! The diode is actually a “normal” diode (1N4148) which I used instead of the LED. I replaced the diode by a LED. I also replaced the coil because the original one was on a massive wood cylinder, and I thought that maybe it should be a tube. The new one is a bit larger in diameter, on a plastic tube, with about 285 turns. The primary coil has now 4 turns. I shortened the 2nd terminal of the large coil. The primary coil is now clockwise, with the lower (the 1st) terminal
        connected to the collector of the transistor. The secondary coil is
        counterclockwise, with the 1st terminal connected to the base of the
        transistor.
        It works now, but only for a short time (a few seconds to half a minute), than the transistor burns. I do not know if its because of excessive voltage, excessive current, or whatsoever.
        What could I do to keep the transistor from dying (apart from using one with higher voltage/current/power ratings)? Is it possible to use a darlington transistor?

        • Do-Science says:

          Glad to know about its working
          now you have to increase resistor Value or try to add additional transistor in parallel.

          • Stefan Skowronek says:

            Hello,
            I did both, increment the resistor value to 160k, and put a second transistor in parallel. The transistors still get very hot, but for now it is working all right. Thank you very much, I really appreciate your help! It is a great project! I was actually surprised how bright the lamp is glowing.

    • Do-Science says:

      and i also observed you uses zener diode. try again without it

  26. paras says:

    Plz make a video telling what to do or what not to do in making tesla coil as all are getting troubled this request is from all the frnz waching your you tube channel plz
    Do it definately
    Plzplz plz plzplzplz plz plz plz plzplzplzplz plz plz

  27. KARUN R.PILLAI says:

    Dear Sir,
    I have build a Tesla coil with 26 gauge copper wire,but when I connected to 9v battery the transistor become very hot and tesla coil is not working.I tried this project 7 times but it didn’t work and transistor become hot what was the mistake done by me please help me sir

  28. Ronit says:

    Used 30 gz with 300 turns, dia-0.50 inch, resistance 22k and transistor pn2222..bt its not working only the circuit led blinks when I touch the coil..i inverted the coil,battery bt no use…need help…

  29. Ronit says:

    This is my circuit

  30. zahid says:

    what is the least amount of the turns of the pirmary coil

    • admin says:

      around 300 turns for primary and 3 for secondary coil

    • Do-Science says:

      300 turns and 3 turns for 2nd coil

      • zahid says:

        used 30 gauz wire 350 turns wire for the primary coil and 3 turns for the secondary .
        it works but the brightness of the cfl bulbs and rods is not bright enough as showed on the video also the transistor is getting extremely hot. also cant take the cfl bulbs even 1 inch away from the coil also used a top load but nothing happened. Sir please give a solution

  31. zahid says:

    please answer

  32. zahid says:

    used 30 gauz wire 350 turns wire for the primary coil and 3 turns for the secondary .
    it works but the brightness of the cfl bulbs and rods is not bright enough as showed on the video also the transistor is getting extremely hot. Sir please give a solution

  33. Kenju Magtibay says:

    what if I use 1400 primary, will it work?

  34. Victoria Mikael says:

    Assalamualaikum sir. i have build a tesla coil with 24 gauge copper wire and my transistor become hot and not working. for 1st coil, i make less than 200 turn and 2nd coil is 3 turn. can u help me my brother? sorry about my english. i need to submit this project on thursday :'(

    https://uploads.disquscdn.com/images/88c1a22ff07b0f0af1dabd9a32d939cd9bd751f26963a0aac84d742a24f563c8.jpg

    https://uploads.disquscdn.com/images/1e309cc0978d2945f337bb0cd75748d1c72c28d7ac63bc70acd89964ef641705.jpg

  35. Farah Deebah says:

    Aoa, Hi sir I made this project all properly used 2N2222A transistor, 29 k resistor, 27 gauge copper wire and pvc pipe and also insulated wire also but it’s not making any out put. For power I used 9v battery and connector and 11w energy saver. Please help me as I need it as my science fair projects till 22 November 2016. Kindly help..

  36. Farah Deebah says:

    Can anyone help me about this project as I messaged yesterday also but I didn’t got any reply that what gauge of copper wire I should use for secondary coil.

  37. Rauf Əsədov says:

    https://uploads.disquscdn.com/images/4a0c87652fb9ecb5ae97734b004bf0f700dace3e9c169b404f293e2e82b9f105.jpg https://uploads.disquscdn.com/images/29f93a42c391efe9cfae72b532649be3f275c362ec24606a5d211c8a2df81ff0.jpg https://uploads.disquscdn.com/images/e8a767e9e3e76bdf99e83f549b7a2e91597571015958530206348f9f61a5f5b7.jpg https://uploads.disquscdn.com/images/2ff58866078a94968a7d2fd1c7e387599532a04ac56c48110a8ad0578fc16071.jpg

    Salam Aleykum, Could you explain me where I made a mistake. It does not work. I used transistor TIP41c , 22K resistor, on-off-switch, 26 awg(0.4mm) for secondary coil, 18 awg(1mm) for primary coil, approximately 200 turns for secondary coil and 2 turns for primary coil. Also I checked other transistors and resistors, they did not work either. What is wrong with this circuit? please help me. I think the problem is related to 18 awg (1mm) cable.

  38. Mr. ClashBash says:

    Hey, i’ve made a same tesla coil with all the requirements you have talked about but the problem is, when the battery is connected the LED glows up and the salyer doesn’t works the transistor heats a bit of too. I tried inverting the primary coil but the LED glows continuously independent of everything. Please help me, as it is mine physics project i need to work it out asap…. https://uploads.disquscdn.com/images/9b295e1d0f48d7df6bdda86fec076eb38a599738a4fc5a83ac52cf1d0f2eac63.jpg

    • Do-Science says:

      can you confirm me about your copper wire is it enamel coated copper wire ? in picture 2nd coil doesn’t look

  39. Scope Of Unity says:

    hey.I made a tesla coil that you have talked about.My Led is glowing and When i touch the coil it turns off.But when i took my energy light closer to Coil,it doesnt glowing.I inverted the primary coil,but led doesnt glowing means my past circuit is perfect.So what should i do know?I need to fixz it before 28th January.Pls Help.

  40. Arwankid Dkhar sympli says:

    Hello i need help with this project i have try many time but it’s don’t work….

  41. swvy says:

    hi sir i have tried making this using a 2n2222A transistor, 22k resistor . my primary coil stands 24cm tall, and around it there are are 4 loops of the secondary coil. the problem is that my transister keeps getting hot and blows up . can you please help me as this is very confusing me and i am in a hurry to finish this for my project.
    thanks

  42. swvy says:

    does the lenghth of the primary and scondary coil matter

  43. Faizan Hamayun says:

    How many tesla generated?

  44. Milind says:

    Hi bro please tell me the led that you used when I connect negative terminal of led to emitter it stops glowing and circuit also not working help

  45. --unknownymous -- says:

    pls help me. I tried doing the same thing the battery heats up and yet theres no flow of electricity within the board. Pls help me. Its for my science project

  46. DamascusButterKnife says:

    Correct me if I am wrong, but the pictorial diagram is not correct. It appears that the LED is not wired in properly. It shows the Anode connected to the Base when it should be on the Emitter, and the Cathode is connected to the Emitter when it should be on Base. https://uploads.disquscdn.com/images/68712bf1d28c81d5a361a638433b927a93ed5b888ca3a39ac051bc016c4029a2.jpg

  47. Marisol Caballero says:

    My Tesla coil does not wont to turn on. But I am doing a different model of a Tesla coil it is for my science fair project please can you help me.

  48. Marisol Caballero says:

    Please can some one reply

  49. Marisol Caballero says:

    Hello I posted the picture please help me.
    : o

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