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Re: HV at very LOW freq. Tesla Coil
From: Jean-Marc Patten[SMTP:jp001-at-mail.orion-dot-org]
Sent: Wednesday, September 17, 1997 1:48 PM
To: Tesla List
Cc: 'Tesla List'
Subject: Re: HV at very LOW freq. Tesla Coil
thanks for responding
Jean-Marc patten
On Wed, 17 Sep 1997, Tesla List wrote:
>
> From: Phil Chalk[SMTP:philoc-at-ozemail-dot-com.au]
> Sent: Wednesday, September 17, 1997 6:32 AM
> To: Tesla List
> Subject: Re: HV at very LOW freq. Tesla Coil
>
> Tesla List wrote:
>
> > From: Bert Hickman[SMTP:bert.hickman-at-aquila-dot-com]
> > Reply To: bert.hickman-at-aquila-dot-com
> > Sent: Wednesday, September 17, 1997 12:20 AM
> > To: Tesla List
> > Subject: Re: HV at very LOW freq. Tesla Coil
> >
> > Tesla List wrote:
> > >
> > > From: Jean-Marc Patten[SMTP:jp001-at-mail.orion-dot-org]
> > > Sent: Tuesday, September 16, 1997 12:06 PM
> > > To: Tesla List
> > > Cc: 'Tesla List'
> > > Subject: Re: HV at very LOW freq. Tesla Coil
> > >
> > > well i have about 10 oil burner xformers at 10Kv -at-10Ma but i dont
> > think
> > > they will have the juice to do the job. But to answer your question
> > about
> > > 10cps <10Hz>. I have looked all over the net for info but everyone
> > is High
> > > voltage high freq.
> > > thank you for responding
> > >
> > > john
> > >
> > > On Tue, 16 Sep 1997, Tesla List wrote:
> > >
> > > >
> > > > From: Bert Hickman[SMTP:bert.hickman-at-aquila-dot-com]
> > > > Reply To: bert.hickman-at-aquila-dot-com
> > > > Sent: Tuesday, September 16, 1997 8:18 AM
> > > > To: Tesla List
> > > > Subject: Re: HV at very LOW freq. Tesla Coil
> > > >
> > > > Tesla List wrote:
> > > > >
> > > > > From: Jean-Marc Patten[SMTP:jp001-at-mail.orion-dot-org]
> > > > > Sent: Monday, September 15, 1997 4:22 PM
> > > > > To: tesla-at-pupman-dot-com
> > > > > Subject: HV at very LOW freq. Tesla Coil
> > > > >
> > > > > I Need any info on this subject i am researching this befor i
> > invest to
> > > > > much $$ all info wanted
> > > > >
> > > > > thankyou
> > > > >
> > > > > John
> > > > > jp001-at-mail.orion-dot-org
> > > >
> > > > John,
> > > >
> > > > How low a frequency? How big a coil you willing to make??
> > > >
> > > > -- Bert --
> > > >
> > > >
> > > >
> > > >
> > > >
> >
> > John,
> >
> > A Tesla Coil's operating frequency is determined by the electrical
> > characteristics of the secondary and the top terminal. In general, the
> >
> > bigger the physical size of the system, the lower the operating
> > frequency. In order to operate at 10 Hz, truly gargantuan sizes are
> > needed:
> >
> > Let's assume that we make a toroid of 40 feet by 5 feet, and put it
> > atop
> > a coil 20 feet in diameter with a winding 30 feet high, with 800 turns
> >
> > of space-wound #1AWG wire. The toroid capacity will be around 400 pF,
> > the resonator self-C will add another 290 pF, and the resonator
> > inductance will be about 2 Henrys. The combination will yield an
> > operating frequency of about 4 kHz.
> >
> > Hmm... we still need a bigger coil and toroid. Let's double all
> > dimensions, and try again, but space-wind to get the same number of
> > turns:
> > Toroid Size = 80 x 10 feet; Ctoroid ~ 900 pF
> > Resonator size = 40 feet diameter and 600 feet high; Cself ~ 575 pF
> > Resonator Inductance ~ 3.9 Henry.
> > Resonant F = 2 kHz
> >
> > Well, as you can see, getting down to 10 Hz would be quite a
> > challenge!
> > It turns out that a resonator about 1500 feet in diameter and 2250
> > feet
> > high topped by a toroid of about 6000 feet x 1000 feet would do it.
> > That
> > would even put Greg's new monster coil to shame! And it might take
> > most
> > of the electrical power capacity of the North American continent to
> > fire
> > it up properly...
> >
> > Safe coilin to you, John!
> >
> > -- Bert --
>
> Yeah, but someone built all those pyramids, & stuff.................
>
> Not sure just why you want to do this, Jean-Marc, though I can't help
> thinking it has something to do with resonating the Planet. Perhaps
> your best bet is to use a more 'normal' scale of TC & use it as a
> carrier, & modulate it at ~10Hz.... How? Well..........
>
> Cheers,
>
> Phil C.
>
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