High voltage wire

From:  Gregory R. Hunter [SMTP:ghunter-at-mail.enterprise-dot-net]
Sent:  Saturday, April 04, 1998 6:32 AM
To:  Tesla List
Subject:  Re: High voltage wire

Dear Gents,

Want cheap HV wire?  Get some surplus RG-8 or RG-213 coax.  Strip
off the outer vinyl jacket & copper braid (this is easy with a razor or a
box cutter).  The inner 13-gauge stranded copper conductor is covered with
a thick sheath of clear polyethylene--great for HV work.  This wire
is a bit stiff, however.


> From:  Bill the arcstarter [SMTP:arcstarter-at-hotmail-dot-com]
> Sent:  Thursday, April 02, 1998 1:15 PM
> To:  tesla-at-pupman-dot-com
> Subject:  Re: High voltage wire
> It was written:
> >>Cheap source for high voltage wire?
> >>
> >Regular wire with some non-metalic rubber air hose around it.
> Careful here!  I recently tried using some automobile vacuum hose for 
> this and here's what happened:
> Measured insulation resistance on the outside of the tubing at points 
> about one inch apart:  Read >20 Megohm
> Inserted a piece of #10 copper wire into either end of a three inch 
> length of the same type of hose.  Measured the resistance from end to 
> end:  Read 300 ohms.  More than enough conductance to light an LED off a 
> 9v battery, much less act as a better conductor than nonconductor for HV 
> applications!
> This stuff was completely unsuitable for the purpose which I had 
> intended.  Of course I didn't discover that until I had incorporated 
> about twenty small pieces of the stuff into the HV device...
> You might be OK using clear vinyl tubing for a HV insulator...
> -Bill the arcstarter
> Starting arcs in Cinci, OH
> http://www.geocities-dot-com/CapeCanaveral/Hangar/6160
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