Re: primary coil

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "brian by way of Terry Fritz <twftesla-at-qwest-dot-net>" <ka1bbg1-at-mcttelecom-dot-com>

Hi, well i have made several primary's from coax with little success. most
were hard to tune,and just didnt deliver the power. I found using heavy wire
from a transformer better as my last primary is made with 1/16 by 1/8 inch
square copper,i can get many turns without getting too big in diameter and
it tunes well and i get up to 30+ inch sparks with just a 9kv 60 ma neon.
many of the old tesla's found working at fairs and etc used sheetmetal for
primarys with good result. cul brian
----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Tuesday, July 17, 2001 7:58 PM
Subject: Re: primary coil


> Original poster: "Eleanor Flood by way of Terry Fritz
<twftesla-at-qwest-dot-net>" <eflood-at-bellsouth-dot-net>
>
> Hi all,
> How critical is the number for coax to use for a primary?   If so, is
> there a way to determine if it will work by visual inspection.  I have
> lots of coax around here,
> one good length has radio type plugs attached, so think it is Rf rated,
> not the TV hookup type.  Have other coax, but find no identifying
> numbers on any of it.
>
> Also, how about copper tubing?  Have a helix coil, 3/8", 5+ turns, ~
> 3/8" between turns, coil is about 6" in diameter, my secondary is 3-1/2"
> ......
>
> Any info and/or suggestions greatly appreciated.
>
> Safe coiling,   Elli
>
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