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Simple Solid state Tesla coil

Discussion in 'High Voltage' started by wolf08, Oct 20, 2010.

  1. wolf08

    wolf08 New Member

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    I am looking for the most simplest circuit i can get. Preferably radio shack parts. Any ideas?
     
  2. BrownOut

    BrownOut Banned

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    A 555, power transistor and automobile ignition coil. Lots of schematics on the web. I have a few on my home PC I can post if you're still interested.
     
  3. KeepItSimpleStupid

    KeepItSimpleStupid Well-Known Member Most Helpful Member

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    I did it a long time ago with an automobile vibrator (about 200 Hz) and an old auto ignition coil, Later I built a solid state vibrator for use in an old Blaupunkt tube radio. You can buy solid state replacements now, Mine had to be push pull and I just used a 555 timer, a transistor to invert and two power transistors. I got sparks about 8" long from the thing. FET's didn't exist when I did it.

    A 555 circuit at about 200 Hz and a 50% duty cycle driving a FET should work fine.
     
  4. dave

    Dave New Member

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  5. DerStrom8

    DerStrom8 Super Moderator Most Helpful Member

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    I believe wolf08 asked for a solid state tesla coil, not just a high voltage generator. Ignition coils and flyback coils cannot really be considered tesla coils, as they are not air-cored, nor do they operate using resonance, as a true tesla coil does.

    wolf08, in my experience, there really is not a "simple" sstc circuit. You would have to have access to parts like high-power FETs and IGBTs, which, for the most part, are not sold at Radio shack. I would recommend you look online for parts and see if you can buy them online. You can also find circuits for solid state tesla coils by googling "Solid State Tesla Coils" or something similar.
    I wish you the best of luck!
    Der strom
     
  6. Blueteeth

    Blueteeth Well-Known Member

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    That all depends on the ops definition of 'solid state tesla coil'. It seems its become a phrase synonymous with 'HV sparky thing'. A tesla coil will output high voltage at RF frequencies, something you simply cannot achieve without a tesla coils spark gap, cap tank, and air coil.

    As suggested, for simply quick and dirty HV generators, flyback transformers from old TV's/CRT monitors, or an ignition coil, as well as some way of chopping DC into it. Preferably the biggest IGBT you can get with a very high voltage rating and a square wave oscillator.

    Is radioshack still selling electronic parts?
     
  7. DerStrom8

    DerStrom8 Super Moderator Most Helpful Member

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    As I said, a TRUE tesla coil is an air-cored resonant transformer, and a flyback/ignition coil circuit is simply a form of high-voltage generator.
    So, Wolf08, I guess we should just ask you: did you want a real solid state tesla coil, or just a high voltage generator?
     
  8. tcmtech

    tcmtech Well-Known Member Most Helpful Member

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    This is not exactly a Tesla coil but it is a simple and reliable HV spark generator that can be made from off the shelf parts and pieces or salvaged parts from old TV's and what not. :D

    Line voltage CD ignition coil Driver.jpg
     
  9. HarveyH42

    HarveyH42 Banned

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    A Tesla Coil still requires high voltage to be fed into the primary coil, through a spark gap... The solid state portion, is just part of the project. Some people are satisfied with the first portion. Though flyback transformers, were resonant transformers, though not air core like Tesla's. But then again, Tesla didn't have TV's or computer monitors in his day either...
     

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