How to make Tesla Coil, Build Solid state Tesla coil also called slayer exciter circuit

How to make Tesla Coil (Urdu)

How to make Tesla Coil

How to make 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
7. 9V battery

How to make Tesla Coil: 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)

1. Anirban 1 February, 2023 at 16:10

Will my tesla coil still work without a heat sink and a capacitor? Please reply ASAP. Cause in some videos I noticed no use of capacitor just LED, resistor and transistor

2. Marisol Caballero 2 February, 2018 at 00:55

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.

3. --unknownymous -- 24 January, 2018 at 23:59

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

4. Milind 10 January, 2018 at 15:35

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

5. swvy 7 April, 2017 at 22:13

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

6. Arwankid Dkhar sympli 22 March, 2017 at 16:23

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

7. Scope Of Unity 24 January, 2017 at 12:45

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.

8. Mr. ClashBash 6 January, 2017 at 21:25

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 7 January, 2017 at 02:42

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

9. Rauf Əsədov 28 December, 2016 at 12:42

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.

10. Farah Deebah 21 November, 2016 at 07:25

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.

11. Farah Deebah 20 November, 2016 at 16:27

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..

12. zahid 8 October, 2016 at 09:55

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

• zahid 8 October, 2016 at 10:00

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

13. Ronit 18 September, 2016 at 14:30

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…

14. KARUN R.PILLAI 16 August, 2016 at 17:16

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

15. paras 29 June, 2016 at 17:14

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

16. Stefan Skowronek 2 May, 2016 at 11:41

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 3 May, 2016 at 05:16

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

• Stefan Skowronek 4 May, 2016 at 14:25

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 5 May, 2016 at 04:15

now you have to increase resistor Value or try to add additional transistor in parallel.

• Stefan Skowronek 5 May, 2016 at 18:46

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.

17. Aqib Hussain 26 April, 2016 at 08:58

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 27 April, 2016 at 06:21

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.

• Aqib Hussain 28 April, 2016 at 08:58

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.

18. Yasir Ali 25 April, 2016 at 19:15

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

19. Kamruzzman ovi 4 April, 2016 at 02:59

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

20. গোধুলির আকাশ 31 March, 2016 at 03:41

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 )

• Do-Science 4 April, 2016 at 08:29

Magnetuc copper wire guage 30 and more than 300 turns requires for primary and 3 to 4 for secondary

21. Havi Nguyen 18 January, 2016 at 23:06

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

22. Havi Nguyen 18 January, 2016 at 22:57

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!!!

23. Aditya Mittal 20 December, 2015 at 06:14

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

• M Soahib 1 January, 2016 at 09:45

Assalam O Alikum Sir Ap ny ni batyia kay energysaver katnay watts ka hona Chaiay apnu kise bhe Video may Or is kay Back my jo 4 wire hote hy us kya karna hy Plzz Repnay karay ga
Sohaibsobi81@gmail.com

• M Soahib 4 January, 2016 at 07:47

Sir may Chahta ho kay 12W ka Saver Full on hona Chaiay To us kay liay mujay Kuch Cheizo ka izafa karna para ga ya ni Q kay is say to saver Dim Jal raha hy

• Aditya Mittal 3 January, 2016 at 15:07

Sir,
Thanks for your valuable reply, I will definitely try out the simple version of that project. And sir did you saw the attached pictures of the project I made cause I wanted to know there I went wrong. Just a humble request to you that please check my model and tell any suitable solution to the problem.

Regards

• Frank Wilbert 10 March, 2016 at 02:40

Hi one question, instead of magnet wire for the primary coil can it just be 22AWG hook up wire? I have magnet wire but other videos are saying to use hook up as the primary and magnet as the secondary.

• Aditya Mittal 17 March, 2016 at 15:02

Sir, I again tried it, the simpler version and it is not working ??AGAIN ??
Please have a look at the attached pictures.

24. Aditya Mittal 20 December, 2015 at 05:57

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

25. Ýõgéñdrã Sólãñkí 4 November, 2015 at 12:58

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

26. Yohanes Kristanto 11 October, 2015 at 02:50

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!

27. Aarsh Patel 20 August, 2015 at 08:29

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????

28. xmen 19 April, 2015 at 19:34

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

29. Gianmarco Peña 4 April, 2015 at 19:44

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

• نعمان نعیم نعیم 9 May, 2015 at 11:00

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