How to Make a Miniature Tesla Coil

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Introduction: How to Make a Miniature Tesla Coil

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 time…

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..

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.

For more projects subscribe my youtube channel [Click Here]

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    56 Discussions

    0
    Divine Prosper
    Divine Prosper

    13 days ago

    Hello.
    This is a nice and easy method, infact I just made it and it works very perfectly.
    But please may I know the output frequency of this mini tesla coil?

    2
    jayson.nhan
    jayson.nhan

    Question 4 months ago on Step 2

    Why do you specifically use 22k ohm resistor and a 22 ampere transistor?

    0
    kineticsbrain
    kineticsbrain

    Question 6 months ago

    What type of wire am I soldering to the battery? Is it aluminum or is it silver? What gauge is it?

    0
    alana136
    alana136

    Question 2 years ago on Introduction

    enamelled or non enamelled copper wire ?can use

    0
    ColinD38
    ColinD38

    Answer 8 months ago

    you need to use enameled, this prevents shorts....just remember though that you need to sand off the enamel off the ends of the wire before soldering to components, otherwise it will not work.

    0
    guptanidhi8000
    guptanidhi8000

    Question 10 months ago on Step 3

    Sir kya ham 22G copper wire ke jagah normal wire jo apne blue colour ke use kiye ho waisa wire use kar skte hai kya

    0
    Roboroy10
    Roboroy10

    Question 11 months ago

    What if we use 20 guage wire with 4 inch long tube
    Which transistor and resistor and how much volts battery should we use for it

    0
    Tech Hunt
    Tech Hunt

    2 years 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

    0
    Cnpi Ruhul
    Cnpi Ruhul

    Reply 1 year ago

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

    0
    Tech Hunt
    Tech Hunt

    Reply 1 year ago

    becuase passing cuurent range is high so transistor is heat and after they burn so use other high current transistor

    0
    kajalp5
    kajalp5

    Reply 2 years 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 ?

    0
    Sagar9893316707
    Sagar9893316707

    Question 1 year 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....

    0
    Happy 1111
    Happy 1111

    Answer 1 year ago

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

    0
    AyushR42
    AyushR42

    Question 1 year ago

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

    0
    Tanesh
    Tanesh

    Question 2 years ago on Introduction

    sir, i did everything but still it is not working

    0
    TMTiger
    TMTiger

    2 years ago

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

    0
    TMTiger
    TMTiger

    Question 2 years ago on Step 1

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

    0
    BiharB
    BiharB

    Question 2 years ago on Step 1

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

    0
    flmjxfighter
    flmjxfighter

    Question 2 years ago

    can it burn paper