How to Make a Miniature Tesla Coil

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About: HI! I am Junez Riyaz, currently doing Bachelor of Technology in the field of Electronics and Communication Engineering. I am much interested in inventing something new yet from my childhood. In my leisure ti...

Tesla coil is a radio frequency oscillator that drives an air-core double-tuned resonant transformer to produce high voltages at low currents.Tesla's original circuits as well as most modern coils use a simple spark gap to excite oscillations in the tuned transformer. More sophisticated designs use transistor or thyristor switches oscillators to drive the resonant transformer.

Miniature Tesla coil also does a same work but it does not produce as much high voltages.

Now I am going to instruct how to make a miniature tesal coil with less number of components.

Lets Get Started..

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Step 1: Components Required

22 gauge magnetic Copper wire - 30 cm [Banggood]

28 gauge magnetic Copper wire - 10 m [Banggood]

PVC Pipe [Diameter - 2cm ; Length 9cm]

Switch -1 [Banggood]

2N2222A Transistor - 1 [Banggood]

22K Ohm Resistor - 1 [Banggood]

9V Battery and Clip - 1 [Banggood]

Cardboard Sheet [10 x 10 cm] - 1

Step 2: Circuiting

1. Take pvc pipe and winde 300-400 turns of 28G copper wire.[Primary coil]

2. Apply tape at bottom and winde 4-5 turns of 22G copper wire [Secondary coil].

3. Now remove enamel of copper wires at end.

4. Solder 22k ohm resistor to the base of 2n2222 transistor.

5. Solder bottom end wire of primary coil to base.

6. Solder one end of secondary coil to collector.

7.Solder Positive terminal of battery clip to Switch and negative terminal to emitter pin.

8. Now solder another end of secondary coil and another pin of switch to the free end of 22k resistor.

9. Leave the top end wire of primary coil free in air.

Circuiting Completed

Circuit and Datasheets attached.

Step 3: Construction and Testing

Feel free to comment.

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    49 Discussions

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    Sagar9893316707

    Question 8 months ago on Step 1

    I made a tesla coil bt it's not working
    I used a 22 kohm resistance a 2222 type transistor
    I think the problem in in no. Of turns of primary and secondary coil
    Help me to determine those turns pls
    And the coil i shoul use....

    1 answer
    0
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    Happy 1111Sagar9893316707

    Answer 19 days ago

    Take 200 turns of secondary coil
    And take 3 turns of primary coil
    Okkk

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    Tech Hunt

    1 year ago

    2n2222a transistor is working in low current lod but in this Tesla coile current rating is high so is problem is comon
    But u use 3-4 transistor in parallel so is working is good and heating problem is reduce

    2 replies
    0
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    Cnpi RuhulTech Hunt

    Reply 4 months ago

    Bro Is it work????
    But transistor is very hot, and don't work!
    why?

    0
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    kajalp5Tech Hunt

    Reply 1 year ago

    i m using transistor BC547 because they say that 2n2222a is not available here and now my Tesla coil is not working. could transistor be the reason for the non - functioning of the coil ?

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    AyushR42

    Question 8 months ago

    I have arranged the setup as u have told buttesla coil was not working

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    alana136

    Question 1 year ago on Introduction

    enamelled or non enamelled copper wire ?can use

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    Tanesh

    Question 1 year ago on Introduction

    sir, i did everything but still it is not working

    0
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    TMTiger

    1 year ago

    I have done everything told and the circuit is also fine. But the coil isnt working. Any possible reason???

    0
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    TMTiger

    Question 1 year ago on Step 1

    What if instead of 22k i use 5.6k ohms???
    What change would be seen...
    Does it still work???

    0
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    BiharB

    Question 1 year ago on Step 1

    what is the volt of 22k resitance for mini tesla coil

    0
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    flmjxfighter

    Question 1 year ago

    can it burn paper

    0
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    KarthicP

    Question 1 year ago

    enamelled or non enamelled copper wire ???

    0
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    TylerD90

    Question 1 year ago on Introduction

    Would it be a great generator to power your household items?

    0
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    PiyushP49

    1 year ago

    it is not working ....i followed all steps u said ...what is error ? pls inform

    0
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    Vinitshah

    1 year ago

    Can we use 24 SWG coil for secondary coil

    0
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    Vinitshah

    1 year ago

    Can we use 24 SWG wire for secondary coil