Can anyone tell me the resistance values of different metal tubing?
Like emt compared to copper,stainless,and aluminum? (This is for
antenna building).

Try http://www.amm.com/index2.htm?/ref/conduct.HTM
--
Fred R
________________
Drop TROU to email.

Fred R wrote:

Try http://www.amm.com/index2.htm?/ref/conduct.HTM

or http://www.matweb.com -- very nice.

--

Tim Wescott
Wescott Design Services
http://www.wescottdesign.com

Fred R wrote:
Try http://www.amm.com/index2.htm?/ref/conduct.HTM
--
Fred R
________________
Drop TROU to email.

Where would emt fall on that list?

wrote:

Can anyone tell me the resistance values of different metal tubing?
Like emt compared to copper,stainless,and aluminum? (This is for
antenna building).

emt?

--

Tim Wescott
Wescott Design Services
http://www.wescottdesign.com

EMT condiut. WOuld it be the same as regular steel?

Accordint to that list copper is the most conductive. DOes that mean it
is the best to make an antenna out of? DOesnt copper "tarnish" or rust
out in the environment?

wrote:

Accordint to that list copper is the most conductive. DOes that mean it
is the best to make an antenna out of? DOesnt copper "tarnish" or rust
out in the environment?

Tarnish, yes. Rust out -- not unless you're by the sea shore. But
that's why you're asking about paint.

I _think_, but don't know, that the copper oxide isn't terribly
conductive and so doesn't mess up the antenna characteristics. Aluminum
is quite good -- it's very conductive, aluminum oxide is very
non-reactive and is a perfect insulator, so there's no dissipative layer.

--

Tim Wescott
Wescott Design Services
http://www.wescottdesign.com

wrote:

EMT condiut. WOuld it be the same as regular steel?

You tell me -- is it galvanized? What of the skin effect?

--

Tim Wescott
Wescott Design Services
http://www.wescottdesign.com

wrote:

Can anyone tell me the resistance values of different metal tubing?
Like emt compared to copper,stainless,and aluminum? (This is for
antenna building).

Design a Wheatstone bridge and measure them. It depends on so many many
items - alloy , and dimensions ....... attachment...

Martin

--
Martin Eastburn, Barbara Eastburn
@ home at Lion's Lair with our computer
NRA LOH, NRA Life
NRA Second Amendment Task Force Charter Founder

On Tue, 11 Jan 2005 03:49:55 GMT, "Martin H. Eastburn"
wrote:

wrote:

Can anyone tell me the resistance values of different metal tubing?
Like emt compared to copper,stainless,and aluminum? (This is for
antenna building).

Design a Wheatstone bridge and measure them. It depends on so many many
items - alloy , and dimensions ....... attachment...

Martin

Ive got a 375' plus spool and at least a hundred feet more of .020 x
..125 MWS-294 resistance ribbon, if anyone needs some

Google is your friend for the data.

Gunner

"At the core of liberalism is the spoiled child -
miserable, as all spoiled children are, unsatisfied,
demanding, ill-disciplined, despotic and useless.
Liberalism is a philosphy of sniveling brats." -- P.J. O'Rourke

Yes, it is galvanized.