RE: [TCML] keeping primary copper tubing nice and shiny

[G Hunter <dogbrain_39560@xxxxxxxxx>]

Gary, you are correct.  Pure silver is a much better conductor than silver oxide according to this ham radio site:

http://hamwaves.com/antennas/coils.html

Quote:

"At a temperature of 20°C (293.15K), silver (Ag) has a resistivity of 1.58·10-8Ωm, which is the lowest of all metals, and a temperature coefficient of 0.0038K-1. Silver[I] oxide (Ag2O) at this temperature has a 500 times higher resistivity of 8·10-6Ωm and a temperature coefficient of 0.004620K-1 [3]. Nonetheless it is still considered to be a conductor, whereas both copper[I] oxide (Cu2O) and copper[II] oxide (CuO) are semiconductors at room temperature."

Close quote.

Nuf said,

Greg


--- On Sat, 1/16/10, Lau, Gary <Gary.Lau@xxxxxx> wrote:

> From: Lau, Gary <Gary.Lau@xxxxxx>
> Subject: RE: [TCML] keeping primary copper tubing nice and shiny
> To: "Tesla Coil Mailing List" <tesla@xxxxxxxxxx>
> Date: Saturday, January 16, 2010, 11:16 PM
> I don't think that's true. 
> Please cite a reference?
> 
> > Silver oxide is a better conductor than metallic
> silver.
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