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Re: Cable question
From: chuck[SMTP:cglasco-at-erols-dot-com]
Sent: Friday, January 02, 1998 7:42 PM
To: Tesla List
Subject: Re: Cable question
Tesla List wrote:
> From: Adam[SMTP:absmith-at-tiac-dot-net]
> Sent: Thursday, January 01, 1998 10:09 PM
> To: Tesla List
> Subject: Re: Cable question
>
> >Just wondering what kind of cable should I use to connect a NST to the
> >protection network, i.e. the chokes, bypass caps & SG? I have a few metres
> >of neon cable. I'm guessing this is quite suitable for this purpose.
>
> Yes, this is the ideal wire. For those looking for HV insulated wire
> (15kV -40kV), you can:
>
> 1. Order it by the foot from a surplus house
> 2. Buy some from a neon supply shop.
> 3. Get some from junked TV sets or a TV repair place
> 4. Get spark plug wire, from an auto parts store.
>
> They'll all work fine. The neon stuff with the black flame retardant
> jacket over the polyethylene insulation is the safest bet, buy the TV and
> spark plug rubber-insulated wire have the advantage of being more
> flexible.
>
> >Also what kind of cable should I use to connect the Tesla tank components.
> >I presume there's quite a large current flowing through here and neon cable
> >can't hack it.
>
> That's an understatement. 100's of amps and 14 gauge wire are a bad
> match indeed. I use 1" copper strap for my tank, recommended to me by
> Gary Lau, and it is a noticable improvement over the 8 gauge Monster car
> audio cable I was using previously. The bigger your coil, the larger the
> tank wiring needs to be. What size are you building?
>
> >And finally what kind of wire should I use to wind the chokes?
>
> For air core chokes, HV enamel covered is best. Double Formvar wire that
> is used for secondaries is suitable. I don't recommend air core chokes,
> since you need to make them huge to get the right value. Small air cores
> tend to self-resonate due to the high inter-winding capacitance. They
> are mini-TC's in their own right.
>
> For ferrite and iron powder chokes, PVC jacketed hookup wire or stripped
> RG58 (50 ohm coax) are most common. Of course you need to keep the clear
> plastic part of the RG58 :-).
>
> -Adam
>
> --------------------------------------------------------------------------
> Adam Smith
> absmith-at-tiac-dot-net
> Epoch, Inc. Digital Music Project
>
> www.tiac-dot-net/users/absmith/ MP3 Demo Tracks Now Available!
> --------------------------------------------------------------------------
Should't you be using copper tubing at this point? Wire gauge means nothing
because of the skin effect.... how about 1/4, 3/8, - 3/4" plumbing pipe?
C. Glasco