Re: Official air breakdown voltage?

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: "JT Bowles" <jasotb@xxxxxxxxxxx>

Oh, forgive me. I thought it said 300Khz, not MHz
I am not saying a toroid increases frequency. Everyone, intelligent, 
knows adding capacitance lowers freq.

> From: "Tesla list" <tesla@xxxxxxxxxx>
> To: tesla@xxxxxxxxxx
> Subject: Re: Official air breakdown voltage?
> Date: Sun, 27 Nov 2005 12:40:04 -0700
>
> Original poster: Jim Lux <jimlux@xxxxxxxxxxxxx>
>
> At 08:54 AM 11/27/2005, Tesla list wrote:
> > Original poster: "JT Bowles" <jasotb@xxxxxxxxxxx>
> >
> > Carlos said:
> > "The 30 kV/cm figure for initial breakdown is valid for at least 300
> > MHz.(At least, this is what my "Reference Data for Radio Engineers"
> > says.)
> >
> > *Well, my coil resonates at i dont know...
> > My unloaded secondary is 240KHZ. With toroid....i have no clue
>
> It would be a mighty unusual coil to have a resonant frequency that 
> is higher with toroid than without.  And if 240 kHz is less than 300 
> MHz, anything lower than 240 kHz is also less than 300 MHz.
>
> Bear in mind that is for "initial breakdown".. what you see 
> emanating from your topload is usually not "initial breakdown", 
> unless you're doing single shot tests as Dr. R suggested.