Re: copper tubing thickness?

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

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

1/4"OD is pretty small.. you might want to bump up to 3/8"..
Wall thickness is unimportant (thinner the better, because it's cheaper and
lighter).. because the skin effect will push all the current to the surface
anyway (why 3/8" might actually be better...)

Be careful about "nominal sizes" vs actual sizes..

"refrigeration tubing" is sold by actual OD

Copper tubing (pipe) in various types (M, L, K, from thinnest to thickest
wall.. M is what's used inside your house)) is sized more like iron pipe
(but still different). There are two kinds, hard and soft, hard comes in 20
foot lengths, soft comes in coils..

In L type, 1/4" tubing is .375" OD (3/8"), and .315" ID, 3/8" tubing is
actualy 0.5" OD, 0.430" ID, etc..

----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Saturday, March 01, 2003 10:00 AM
Subject: copper tubing thickness?


 > Original poster: "Dwight Harm by way of Terry Fritz <teslalist-at-qwest-dot-net>"
<dwighth-at-traxsoft-dot-com>
 >
 > I'm considering getting some 1/4" OD copper tubing, as that seems to be
the
 > preferred primary coil material.  How significant is the tube thickness?
 > This will likely be driven by a 12/30 NST for now, but I'd like it to be
 > able to handle something heavier (say 12/60) in the future.
 > Dwight.
 >
 >