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Tesla Electronic Miniature Coil - Assembly Kit

TechEkspert 7299 10
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  • Tesla Electronic Miniature Coil - Assembly Kit
    A Tesla transformer (TC) is usually a large, heavy device that draws a lot of power and produces voltage pulses of the order of MV. The presented assembly kit allows you to build a device referring to TC. The system can be powered with 15-24V DC, the current consumption depends on the supply voltage and amounts to 0.6A-1A. The system generates high voltage which produces a corona discharge, additionally we can control the intensity of the discharge using the audio signal (minijack input). The kit can be found at auctions by searching for the phrase electronic tesla coil .

    Despite the low power of the system, one should be careful about the voltage present in the system (possibly dangerous to people with a pacemaker), which is dangerous to life and health, and one should also be careful about the possibility of damage to electronic devices and a high level of electromagnetic interference.

    The assembled Tesla electronic coil can be used for entertainment or high voltage experiments.

    [movie: fb07ae4943] https://filmy.elektroda.pl/44_1525019427.mp4 [/ movie: fb07ae4943]

    The set includes a plate, a set of elements, thermal glue for mounting the coil, thermal paste for mounting transistors on heat sinks and a neon lamp to check the operation of the device.
    Tesla Electronic Miniature Coil - Assembly Kit



    The assembly should begin with the smallest elements (resistors), through connectors, capacitors, etc. The transistors should be mounted on the heat sinks using screws (apply silicone paste to the contact surface before assembly). The coil of the air transformer is ready and secured with Kapton tape. One end of the coil is soldered to the board as described, the other end is left in the air (there will be a corona discharge on it). The assembly is carried out as described on the PCB. Surround the air coil with one turn of the attached wire and solder it as described on the board.

    Tesla Electronic Miniature Coil - Assembly Kit
    Tesla Electronic Miniature Coil - Assembly Kit

    When energized, a corona discharge will appear at the free end of the air coil. When we give the audio signal to the minijack input, the discharge will be modulated to the beat of the music. Placing a neon lamp near the coil will cause the gas to glow. The transistor heat sinks heat up quite strongly during operation to over 60 C.
    A rather inexpensive MP3 player should be used as an audio signal source due to the possible risk of damage to the connected device. In similar, more powerful designs, optical fiber is used to transmit the signal to the MSTC.

    Tesla Electronic Miniature Coil - Assembly Kit

    The set includes a manual in Chinese, you can see the assembly of the system (in particular, the method of making the primary winding of the air transformer). The manual also includes a schematic diagram of the device.
    Tesla Electronic Miniature Coil - Assembly Kit Tesla Electronic Miniature Coil - Assembly Kit

    What do you think about such a simple system, what can it be useful for, can it be an introduction to experiments with other types of Tesla transformers, e.g.. SSTC, DRSSTC?

    Cool? Ranking DIY
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  • #2
    nez
    Level 12  
    As an ignoramus who has two left hands
    I really like it
    And there are a lot of experiments with Tesla coils

    -------------------------------------------------- -
    now a joke / it's TAKIE MEMENTO /
    I wonder how many users of this set will survive?
    -------------------------------------------------- ----
    But someone had a nice thought, just that the manual should be good and go!

    I have not read where, how and how much it costs
    best regards
    nez
  • #4
    nez
    Level 12  
    Thank you very much for your answer
    best regards
    nez
  • #5
    kassans
    Level 32  
    Very simple layout, reproducible at home. The coolest thing is a ready-made coil on a tube with which I always have a problem; /
  • #6
    rb401
    Level 38  
    TechEkspert wrote:


    A slightly different wording of the query shows that in several (also slightly more serious) stores the price for this kit is even below $ 5:

    https://en.aliexpress.com/wholesale?SearchText=diy+tesla+coil

    there is also a single transistor version without the "music" function, but the price difference is very slight.

    But I am wondering otherwise. On this search page you can see that there are definitely different views on the primary winding for practically the same PCB and elements. They are single-turn, three-turn, but also hmmm ... half-turn (?).
    Especially that the principle of the self-induction generator would imply that for the primary winding its inductance and coupling with the secondary is crucial for the power and voltage obtained on the secondary side. But you can see that this system is somehow not very sensitive.
  • #7
    Rezystor240
    Level 41  
    kassans wrote:
    Very simple layout, reproducible at home. The coolest thing is a ready-made coil on a tube with which I always have a problem; /


    Why? winding the coil in all this construction is the most fun.
    If anyone knows how to do it, he can do it without any problem.
    Maybe I will show my Tesla coil which I made some time ago.
  • #8
    TechEkspert
    Editor
    rb401 wrote:
    A slightly different wording of the query shows that in several (also slightly more serious) stores the price for this kit is even below $ 5:

    https://en.aliexpress.com/wholesale?SearchText=diy+tesla+coil

    there is also a single transistor version without the "music" function, but the price difference is very slight.


    They are also available directly in Poland, which probably has a positive effect on the delivery time,
    for example, one of the companies advertising on the home page of elektroda.pl has such sets on offer.

    @ Resistor240 it's worth presenting your TC,
    This circuit, to my surprise, worked immediately, but the more powerful TCs made from scratch require more attention.
  • #9
    nez
    Level 12  
    I have a question
    Is it possible to draw some relatively constant voltage from this (from these Tesla coils)?
    If so, what?
    How long can it last?

    I saw on AliE ... also the 5V-powered coil itself, somehow I can't catch these parameters
    best regards
    nez.
  • #10
    TechEkspert
    Editor
    Perhaps it would be possible to straighten the output voltage from the coil with the HV diode (diodes), and then smooth it with the HV capacitor, but I have no idea what parameters the output voltage has. I did not dare to study the waveforms in the circuit with an oscilloscope, just like the audio signal came from the cheapest old MP3, this circuit causes real damage to the electronics, so be careful.