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Picture of How to Make a Mini Tesla Tower

The concept of wireless electricity was introduced around 100 years ago and even today, it is one of the most fascinating and exciting topics for scientific research & development. It was the great scientist Nikola tesla, who actually demonstrated the transmission of electricity wirelessly.

In this Instructable, I decided to make a mini Tesla Tower (similar to a Slayer Exciter), that can power ON any Fluorescent or neon lights wirelessly. However, the concept of wireless electricity is quite different than the concept of slayer exciter. This device can only glow fluorescent and neon lights without actual transmission of electricity whereas wireless transmission devices actually transmit electrical power through electromagnetic Induction.

This is a great project for having fun, experimenting, demonstration in exhibitions and also showing magic tricks.

Step 1: Watch the Video

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FranciscoP1097 months ago
How many turns I have to perform if I have 20 awg 0.5 in order to make work
Techgenie (author)  FranciscoP1097 months ago
Keep the primary to secondary turn ratio to be around 1:100 , it should work. Also make sure that you need to use good quality high current battery because a normal cheap chinese battery doesnot have enough current to power the project.
mharkohwillson11 months ago
How many turns have to perform in 34 awg wire. Theirs be any changes like the voltage source or resistor because no available 28awg in the market.
Thank you for respond.
mharkohwillson11 months ago
How many amperes he can do.
Techgenie (author)  mharkohwillson11 months ago

Nope, its not about amperes. Its just a very small project and uses electromagnetic field to excite the electrons inside the neon and fluorescent lights. It doesn't actually transmit electricity.

I am guessing this project can also be used to sabotage technology,

hence,it induces an electric charge.

Techgenie (author)  Count Volta1 year ago

Hehe...Yes, i think so, but this project is very tiny to cause any harm.

Come on volta, it aint all about weapons is it?

How many turns do I have to perform if I have 0.10 mm (38 awg) wire?

Since I can not find the wire of the caliber that it indicates !.

Techgenie (author)  davis.nunez.91 year ago

A turn ratio of 100:1 will work for any gauge of wire. However, it all depends on power supplied. Wind about 200 turns of wire and it should work with 9v 500mA power source.

bc12351 year ago

OR, you can save the hassel of building a switching circuit and just disassemble a small power supply, probably have a 9 or 12 volt one lying around the house somewhere (those little bricks you plug into the wall). Open it up, solder a couple wires to the output of the transformer and you'vs bipass the switching regulater alltogeter. If you have a little electonics knowlege you can probably remove their regulator alltogether. After all, your point is to just get it to AC for the primary. It doesn't take much current. When I was a kid a friend of mine and I built a big one; 12 turn primary, 2000 turn secondary, 2-36 inch glass plate capacitors (also homemade), about a 2 inch sparkgap all all powered by a 12000 volt neon sign transformer. The neon sign transformer only put out about 30 ma. We never measured the Tesla coil output current but the voltage out was about 2,000,000 V. It was fun grabing the coil's electrode on the top and watching the sparks painlessly come out your fingers. Well painlessly until your foot accidently contacts the housing of the transformer, OUCH!!! So, for this projec: pretty any powersupply you find around the house will be good. They will probably be 300ma or better. That should be more than enough. It's a neat project. Thanks for posting it. I bet some people will have fun building it. It makes a cool science fair project or show and tell for science class.

Techgenie (author)  bc12351 year ago

Thanks for the great tip and thanks for appreciating my work..:)

Doesn't this circuit switch at the coils resonant frequency? If so I don't believe it would run off of 50 or 60 hertz would it?
Not if you use one of the lightweight switching-supply type power bricks that run at something like 25Khz and likely produce a lot of harmonics at or near resonant frequency...
Excelente, gracias muy bien y claramente explicado
Techgenie (author)  Ca. RAFAEL FELIXXO1 year ago

Muchas gracias..:)

Corncob121 year ago

Instead of twenty cm long- Would 10 cm be better.

Techgenie (author)  Corncob121 year ago

Yes, you can give it a try but i don't think you would be able to wrap about 200 turns on a 10cm length but yes, you can surely overlap them.

I want some little sparks on this.
What changes or addition should I do in this..

Is it safe to touch the coils or the ball?

What are you talking about? Techgenie said that it is completely safe to touch the coils or ball.

Never since it can cause burns in the hand.
Hell no!!!!!!
Techgenie (author)  Techno_Bot011 year ago

Yes, it is completely safe to touch the coils and the ball, if the project is powered by a 9v battery, however, the transistor can get very hot, so avoid touching it.

Thommyboy1 year ago
WOW that is so cool. Sweet job!!
Techgenie (author)  Thommyboy1 year ago

Thanks a lot..

billbillt1 year ago


Techgenie (author)  billbillt1 year ago


artmez1 year ago

A (literally) more polished look discharge ball would be a 5 cm (2 in) stainless steel ball from Banggood:

Yes, 2N3055, a power transistor, can take a bigger load and not get as hot.

This looks great! Power a fluorescent light with a 9 V battery.

Techgenie (author)  Techno_Bot011 year ago


and yes, it does feel amazing when it works..

Techgenie (author) 1 year ago

Thanks for the tip Techno_Bot01, is 2N3055 much better than 2N2222..??

I would suggest replacing the 2N2222 with a heatsink mounted 2N3055, which is also an NPN power transistor and won't get as hot.

Would this be practical for a desk lamp, or will the coils get ridiculously hot?

Techgenie (author)  Thorondor951 year ago

Hello Thorondor95,

This design is not quite practical to be operated for very long periods. However, using a heat sink with transistor can surely increase the run time but still i don't thick that it can be used a desk lamp.