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Results 191 - 200 of 3952 in Forum

  • High Voltage | Plasma Speaker issue

    Posted by ZakWolf on Monday 24 March 2014 - 11:30:41
    so i had a go at rewinding the GDT with 17 turns now which helped a little but it still gets very hot really quickly. I dont understand because i had ...

  • High Voltage | Plasma Speaker issue

    Posted by ZakWolf on Monday 24 March 2014 - 11:30:41
    Verify first if the power supply is working, with 12V at the regulator output. Disconnect the 1 uF capacitor and see if it still gets hot. If it doe...

  • High Voltage | Plasma Speaker issue

    Posted by ZakWolf on Monday 24 March 2014 - 11:30:41
    Does the IC still get hot with the gate drive transformer disconnected? I had this problem and it was the gate drive transformer core that wasn't suit...

  • High Voltage | Plasma Speaker issue

    Posted by ZakWolf on Monday 24 March 2014 - 11:30:41
    im using a computer power supply for the 12v, also i think you are right Alex. I had some issues with the old one and changed it out with what i thoug...

  • High Voltage | Plasma Speaker issue

    Posted by ZakWolf on Monday 24 March 2014 - 11:30:41
    Are you using a 15v or 12v regulator? And if its a 15v are you saying that it is only supplying 12v? What happens if you disconnected the gate dr...

  • High Voltage | Plasma Speaker issue

    Posted by ZakWolf on Monday 24 March 2014 - 11:30:41
    A shorted cap on the input of the chip wouldn't cause any power dissipation in the chip, but a shorted cap on the output side of the chip could. I'd c...

  • High Voltage | Plasma Speaker issue

    Posted by ZakWolf on Monday 24 March 2014 - 11:30:41
    Hey thanks alex, I still have to try replacing the 1uf cap capacitor its an old one from radio shack and i have a good replacemnt. Yes im using ...

  • High Voltage | Plasma Speaker issue

    Posted by ZakWolf on Monday 24 March 2014 - 11:30:41
    Cool, let us know how you get on when you do. :-) Yes im using a 15v regulator because the higher voltage improves the audio, but currentl...

  • High Voltage | Plasma Speaker issue

    Posted by ZakWolf on Monday 24 March 2014 - 11:30:41
    I will let you know how it turns out I have just been loaded with college :( no time. I mean I power the "low voltage side" with 15v and the bri...

  • High Voltage | How do I eliminate RF feed back to my Plasma speaker

    Posted by JamesH on Sunday 21 April 2013 - 09:29:44
    Could be tricky. A cheap portable cassette deck will have sensitive analog circuitry in a poorly shielded plastic case. Might be worth trying a MP3 pl...
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