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Re: Air core flybacks, small flybacks and self resonance........
Original poster: "mercurus2000" <mercurus2000-at-cox-dot-net>
So basically when you drive the flyback with the core and find maximum
voltage output, you're actually driving it at the quarter wave resonant
frequency for the secondary coil? Like a tesla coil?
----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
Sent: Sunday, June 27, 2004 10:21 AM
Subject: Re: Air core flybacks, small flybacks and self resonance........
> Original poster: robert heidlebaugh <rheidlebaugh-at-desertgate-dot-com>
> adam: If you remove the core from a fly-back you change the resonant
> frequency of the coil, The core is part of the resonant circuit.. Most
> flybacks are designed to resonate around 18 Khz to produce maximum voltage
> some more or less if intended for other than TV use. The frequency of a
> transistor amplifier added to the flyback is determined by the frequency
> determining circuit you add to the assembly which may or may not be
> with the coil. Your choice.
> Robert H
> > From: "Tesla list" <tesla-at-pupman-dot-com>
> > Date: Sat, 26 Jun 2004 13:15:21 -0600
> > To: tesla-at-pupman-dot-com
> > Subject: Air core flybacks, small flybacks and self resonance........
> > Resent-From: tesla-at-pupman-dot-com
> > Resent-Date: Sat, 26 Jun 2004 13:21:57 -0600
> > Original poster: "mercurus2000" <mercurus2000-at-cox-dot-net>
> > Hey, I was just tinkering around with some of my small flybacks that I
> > salvaged from some plasma globes, these have the core exposed and the
> > can be removed, they're basically like a TV flyback but the primary is
> > wound for use with 12 volts. I recalling all those one transistor self
> > resonance circuits for flybacks and came to the (perhaps?) conclusion
> > even with those self resonance circuits or even the timer controlled
> > you might not be getting the maximum rise in voltage from the secondary
> > that fasion, the self resonance circuits normally only resonant at the
> > resonant frequency of the primary correct? I thought that if you could
> > remove the core from these small plasma flybacks you could find the
> > harmonic of the self resonant frequency of the secondary and run the
> > at the frequency, giving the highest possible voltage gain, without
> > to worry about the core saturating. Much like a solid state version of
> > Tesla's multilayer disruptive discharge coil in some of his patents. Or
> > it when you tune a ferrite cored flyback to get the max spark you're
> > already doing this? Perhaps I'm completely wrong, and just too tired.
> > Adam