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Measuring secondary voltage (fwd)
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From: D.C. Cox [SMTP:DR.RESONANCE-at-next-wave-dot-net]
Sent: Monday, January 26, 1998 5:21 PM
To: Tesla List
Subject: Re: Measuring secondary voltage (fwd)
to: Malcolm
We tried using 3 different types of coils with different freq's -- we also
changed the top load capacitance and with retuning of the primary did not
see a lot of difference as to the freqs effects on the spark length. I
would suspect that very drastic changes like above 500 kHz would have
visible effects but in the freq ranges we tested of 100 to 350 kHz there
was only a 2-3% total change -- almost negligible. Each test produced
nearly similar results with consistent readings of 9 ft at 1,000 kV and 5
ft. at 500 kV.
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> From: Tesla List <tesla-at-pupman-dot-com>
> To: 'Tesla List' <tesla-at-pupman-dot-com>
> Subject: Measuring secondary voltage (fwd)
> Date: Monday, January 26, 1998 4:47 AM
>
>
> ----------
> From: Malcolm Watts [SMTP:MALCOLM-at-directorate.wnp.ac.nz]
> Sent: Sunday, January 25, 1998 4:12 PM
> To: Tesla List
> Subject: Re: Measuring secondary voltage (fwd)
>
> Mr Cox, All,
> That is a most useful piece of information:
>
> > From: D.C. Cox [SMTP:DR.RESONANCE-at-next-wave-dot-net]
> > Sent: Thursday, January 22, 1998 10:06 PM
> > To: Tesla List
> > Subject Measuring secondary voltage (fwd)
>
> <snip>
>
> > with 9 ft spark discharges between two 1/2 inch dia rods. System was
> > running with a 34 x 8 1/2 inch dia torus. The static firing produced
spark
> > discharges only 34 inches long between the torus and a 24 inch dia
ground
> > oblate.
> >
> > Hope this information is of assistance.
> >
> > DR.RESONANCE-at-next-wave-dot-net
>
> Indeed. Now it would be most interesting to know if there is any
> frequency dependence in that figure. 3'/MV is close to a figure I've
> been using for some time to calculate a minimum secondary height for
> a given maximum Vout I wish to run.
>
> Thank you,
> Malcolm
>
> <snip>
>