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Re: HV at very LOW freq. Tesla Coil


From: 	Malcolm Watts[SMTP:MALCOLM-at-directorate.wnp.ac.nz]
Sent: 	Wednesday, September 17, 1997 3:01 PM
To: 	tesla-at-pupman-dot-com
Subject: 	Re: HV at very LOW freq. Tesla Coil

Nice calcs Bert :)
 
> 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:
<snip>

I was going to suggest building it on location at a copper mine with 
a volcano handy for a geothermal power source. Of course a smelter 
would have to be built but perhaps the lava lake could come in useful 
for this.

Malcolm