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Big Tesla Coil

Discussion in 'Electronic Design' started by Dirk Bruere at NeoPax, Oct 12, 2009.

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  1. When a streamer terminates in the air, current flowing through it flows
    through capacitance between the streamer and ground. I have seen this
    effect before, while playing with homebrew Tesla coils.

    One effect that is my usual experience with solid state Tesla coils
    (ones oscillating continuously, especially) is that I get very intense
    corona. The capacitance between the corona and ground (or between corona
    on a nearby grounded point and the coil) is sufficient to pass current of
    a significant fraction of a milliamp to even milliamps. I was able to
    ignite paper with that intense corona. In some situations, current
    flowing through this corona concentrates into streamers.

    One thing I noticed in the video was that streamers going nowhere were
    not as bright as sparks that were hitting something.

    - Don Klipstein ()
  2. amdx

    amdx Guest

    I don't know, but check out the music made by the arcs.

  3. So, what happens if you get hit by one of those streamers?
    Burns I would guess, but does the high frequency prevent you getting

    Dirk - Transcendence UK - A UK political party - Occult Talk Show
  4. Rich Grise

    Rich Grise Guest

    I once saw a guy standing on top of a big Tesla coil, about 4' tall by
    about 18" diameter, and showed streamers from his fingertips. He did
    have kind of a grimace on his face, like it hurt a bit.

  5. Rich Grise

    Rich Grise Guest

    They're coronas.

    Hope This Helps!
  6. I would not count on it. A coil that size may have a rather low
    resonant frequency.

    Furthermore, my experience is that sometimes Tesla coils can shock. The
    capacitance of the top of the secondary can discharge with the oscillation
    stalling, resulting in a pulse with some DC and broadband low frequency
    component. The top of that big coil looks to me to have capacitance of
    several 10's of picofarads, discharging when its voltage reaches maybe a
    couple megavolts. This sounds to me like a fairly nasty shock.

    - Don Klipstein ()
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