Re: building primaries

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

Original poster: "Jim Lux by way of Terry Fritz <twftesla-at-qwest-dot-net>" <jimlux-at-earthlink-dot-net>

1) fill the tube with sand before bending
2) use a tubing bender (which holds the sides of the tube as it bends,
preventing it from squashing)
3) When you get the tubing in the original package (all coiled up), try to
match the existing coiling to what you want to do.
4) Make sure you are using tubing suitable for bending.  Copper tubing comes
in all kinds of grades and stiffnesses.  The long 10 or 20 foot lengths that
are used for water lines in a house are typically quite hard and tough to
bend smoothly.  Soft refrigeration tubing is what you want.

----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Tuesday, June 26, 2001 8:15 PM
Subject: building primaries


> Original poster: "by way of Terry Fritz <twftesla-at-qwest-dot-net>"
<RQBauzon-at-aol-dot-com>
>
> when trying to make a primary coil, i find it very hard to manipulate the
> copper tubing into the perfect flat primaries that some other coilers have
> without denting it or without having some akward spiral as the result.
how
> do you guys do that??!
>
>
>