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Plasma tweeter

Discussion in 'High Voltage' started by Froskoy, Mar 31, 2010.

  1. Froskoy

    Froskoy New Member

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    Hi,

    I want to try some high voltage stuff and it was suggested to me that I should start with a plasma tweeter.

    I've watched some on YouTube and done a bit of research but was wondering if someone could point me in a good starting direction. I was thinking of trying to control it somehow with PIC.

    Does this circuit look like a good place to start? http://www.hvlabs.com/plasmasonic.html

    I've done quite a bit with low voltage etc.

    Thanks very much,

    Froskoy.
     
    Last edited: Apr 1, 2010
  2. audioguru

    audioguru Well-Known Member Most Helpful Member

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    I think the sound from a plazma tweeter is poor because of the transformer. It reduces low frequencies and high frequencies and might saturate a little producing distortion. The same or worse as a cheap vacuum tube amplifier.
     
  3. Hero999

    Hero999 Banned

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    Corrected.
     
    Last edited: Apr 2, 2010
  4. dave

    Dave New Member

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  5. audioguru

    audioguru Well-Known Member Most Helpful Member

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    In the "good old days" a good vacuum tube amplifier used a high quality Williamson output transformer that had very low distortion and a very wide bandwidth.
    The cheap ones had no deep bass and no sizzling highs but had plenty of distortion.
     
  6. Hero999

    Hero999 Banned

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    As you and I both know a cheaper good quality solid state amplifier will have lower distortion.
     
  7. thermiter

    thermiter New Member

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    I got my start in high voltage with a plasma speaker too. I would recommend, however, that you don't use that schematic. It's more complicated than it needs to be. There's a decent instructable on building a plasma speaker on instructables.com. With either schematic, you'll want to makes sure that the power MOSFET is driven properly, or it will overheat. Try a MOSFET driver like the TC4229 or a MOSFET rated for higher current, or both.
     

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