Re: [TCML] Lighting compact fluro bulbs

["DC Cox" <resonance@xxxxxxxxxxxx>]

In our experiments, using silver-tinned wire produced better performance
than standard magnet wire.  Why, I'm not sure.

Tesla's Wardenclyffe project set up a radiator in effect using low VSWRs to
achieve optimum projection, very similar to methods used by modern radio
engineers.  He did not want any large sparks off the large sphere terminal
but as much radiation as possible.  Since many of these records have been
lost we may never be sure exactly how he tuned this system.

Dr. Resonance




On Tue, Dec 23, 2008 at 12:01 PM, Lau, Gary <Gary.Lau@xxxxxx> wrote:

> I agree that breakout and sparks are counterproductive to lighting
> fluorescent lights, but I'm not sure that the concept of VSWR is even
> applicable to Tesla coils.  How would that be measured or optimized?  My
> understanding of SWR is limited; I thought it had something to do with how
> closely the load impedance in matched to the transmission line impedance -
> things I've never before heard mentioned in the context of Tesla coils.
>  What parameters or features of a coil affect its VSWR?
>
> How does silver tinned (?) wire affect VSWR?  I've not heard that it makes
> a practical difference, performance-wise.
>
> Regards, Gary Lau
> MA, USA
>
>
>
> > -----Original Message-----
> > From: tesla-bounces@xxxxxxxxxx [mailto:tesla-bounces@xxxxxxxxxx] On
> > Behalf Of DC Cox
> > Sent: Tuesday, December 23, 2008 11:52 AM
> > To: Tesla Coil Mailing List
> > Subject: Re: [TCML] Lighting compact fluro bulbs
> >
> > Yes, but the Tesla coil design should be such that the VSWR is very low
> as
> > opposed to a standard coil in which the VSWR is high.  Low VSWR can
> > assure more radiation than a high VSWR which insures large sparks.  You
> > don't want breakouts and long sparks to insure the most radiation.
> >
> > Our coils will light up a neon tube at 3,500 feet using 6.5 kVA input
> > power.  Fourescent tubes light up at 1,500 feet, so neon is much more
> > efficient
> > as a receiver/detector.
> >
> > Use a medium size coil running 3-4 kVA and a similar receiver coil.
>  Largest
> > possible toroid to reduce breakout.  Silver tinned wire on sec, not
> magnet
> > wire.
> >
> > Dr. Resonance
> >
> >
> >
> >
> >
> > On Mon, Dec 22, 2008 at 5:02 PM, John Campbell
> > <circusavalon@xxxxxxxxxx>wrote:
> >
> > > Hi All.
> > > I am not (yet) a coiler, but may become so.
> > >
> > > I run a small circus and we want to be able to hand compact fluro bulbs
> to
> > > people in the audience, ask them to think "light" and then turn a ciol
> on so
> > > they all light up. Can this be done safely? What size coil would light
> bulbs
> > > up at 5m (15feet)? Thanking you all in advance.
> > > John Campbell
> > > (in Australia)
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