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Re: wire
Surplus places like C&H sales often have HV wire for sale.. A tad pricey,
compared to free, but much cheaper than buying 500 feet from Newark.
Typically the C&H price is 10% of new price for same item.
Personally, I'd go for old RG-8 or RG-11 or RG213, etc. coax... .200 inch
of nice uniform PE dielectric and a 13 AWG center conductor.
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> From: Tesla List <tesla-at-pupman-dot-com>
> To: tesla-at-pupman-dot-com
> Subject: Re: wire
> Date: Friday, December 24, 1999 9:23 PM
>
> Original Poster: Terry Fritz <twftesla-at-uswest-dot-net>
>
> At 04:36 PM 12/23/1999 -0500, you wrote:
> >I would be safe to say spark plug wire, found at your local auto parts
> >dealer. It is very well insulated, and can handle a lot of juice. It
is
> >what I am planning to use on my 15kv 30ma coil.
> >
>
> Whoooa!!!
>
> The vast majority of spark plug wire is not copper wire? It is a goofy
> carbon impregnated nylon braid thing. It has about 15K ohms of
resistance.
> It is made that way to reduce radio noise in the stereo. That stuff
will
> just burn up.
>
> Some "Hot Rod" shops have the old "good stuff" that still has nice copper
> as the conductor and that is great for HV use but the gauge is sort of
> small for primary tank circuit use.
>
> Look or ask for "solid copper core" spark plug wire. If they have it, it
> will be great for many HV uses. It won't be cheap...
>
> I use 5kV plastic or rubber "test lead" wire. However, I just route it
> away from other conductive objects or use plastic to support it. It will
> blow through at full voltage but if I am careful it is no problem.
> Digi-key or even Radio Shack has that. I notice that a number of the
> audio cables have really nice thick insulation too...
>
> At work, we use 15kV - 18 gauge silicon rubber cable in large quantity.
> That would be the ultimate, but I don't know of a nice place for us
"little
> guys" to buy it from... I keep waiting for them to scrap a 5 mile reel
> cause "it is dusty" :-)) Hey, works for line filters...
>
> Cheers,
>
> Terry
>