Thread: stainless steel foil instead of copper for grounding Ham radio?
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Brian Whatcott Brian Whatcott is offline
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Default stainless steel foil instead of copper for grounding Ham radio?
On Sat, 13 Oct 2007 12:27:03 GMT, (Richard
Casady) wrote:

On Thu, 11 Oct 2007 07:13:46 -0700, Joe
wrote:

And BTW
tarnished silver is the best, even better than gold.

The tarnish doesn't do anything good. On a relative scale, silver is
250, copper 225, as is gold. Aluminum is 175. Stainless is about like
lead, 6 or 8. Plain carbon steel is 25. Thermal conductivity is
closely correlated with electrical conductativity for what that is
worth. Better at one is generally better at the other.

Casady


I have silver at 0.0159 microhm meter at 20 degC
copper 0.0168 microhm.meter
gold 0.022 microhm meter

So gold may not be not quite as conductive as the best, but it STAYS
at that value - no tarnish....

Brian W
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