RE: multiple gap question

To: tesla-at-pupman-dot-com
Subject: RE: multiple gap question
From: "Lau, Gary" <Gary.Lau-at-compaq-dot-com> (by way of Terry Fritz <twftesla-at-uswest-dot-net>)
Date: Thu, 10 Feb 2000 11:30:09 -0700
Approved: twftesla-at-uswest-dot-net
Delivered-To: fixup-tesla-at-pupman-dot-com-at-fixme

I also used the couplings.  While I could have saved maybe a dollar or two
(assuming I already had the pipe) and just cut up copper pipe, having
pre-made segments all exactly identical in length was well worth the price.
While using a pipe cutter to cut up pipe would have made the ends taper in
slightly, I've not seen any tendency in my fittings to arcing only at the
ends.  Mine were gapped at about 0.03", I used a feeler gauge to verify that
all segments were parallel to one another.  Are yours reasonably parallel?

Regards, Gary Lau
Waltham, MA USA

>Original Poster: Parpp807-at-aol-dot-com 
>
>Hi All,
>I have assembled a multiple gap to try with my bipolar coil. I have eight 
>1-inch diam copper sweat fittings that I have tried to gap at 0.022. I have

>it running on the coil and all the sparks are along the same outer edge of 
>the copper cylinder. Why did I buy the couplings?
>Couldn't I have simply sliced cylinders off of 1-inch pipe. Is this normal?
I 
>found it very difficult to get all those
>"ducks" lined up in a row so that the parallel sides are gapped within
5/1000 
>of 0.022.
>Does someone have a technique figured out for doing this and producing  
>consistent results?
>
>Cheers,
>Ralph Zekelm