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Re: Stainless steel tubing for primary?
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- Subject: Re: Stainless steel tubing for primary?
- From: "Tesla list" <tesla@xxxxxxxxxx>
- Date: Sun, 17 Apr 2005 13:29:25 -0600
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Original poster: "Scott Hanson" <huil888@xxxxxxxxxxxx>
Save the stainless steel for a more appropriate use and spend $25 on a 50'
coil of soft copper refrigeration tubing.
Stainless steel has an electrical resistivity of 4-5X that of copper, and
will be lossy, lossy enough to run hot on anything except a very small coil.
Possibly more of a problem is the extreme work-hardening characteristics of
SS. Even very slight forming of the tubing will induce significant
hardening, which will complicate any bending you may need to do. You mention
that you have a 1,000' spool of this tubing, so if its spooled I assume that
it is in fully-annealed (soft) condition. Nevertheless, even pulling this
off the spool will deform it and cause enough work-hardening to be
----- Original Message -----
From: "Tesla list" <tesla@xxxxxxxxxx>
Sent: Sunday, April 17, 2005 11:19 AM
Subject: Stainless steel tubing for primary?
> Original poster: "Coyle, Thomas M." <tcoyle@xxxxxxxxxxxxxxx>
> So I'm all ready to wind a nice flat primary today, and, lo and behold,
> I'm out of 1/4" copper tubing. I have a bunch of 1/2", but don't feel
> like getting arm-exercise today. I do, however, just happen to have
> about 1000ft of 1/4" stainless steel tubing in a continuous spool laying
> Any thoughts on using this for a primary?
> Performance considerations aside, I think it'd look quite cool.