[Boatanchors] cleaning tarnish from 90 degree coax connectors

[Al Parker]

Hi Eugene, John, et al,
	That's what I've always believed, also.  Tho' I've been taken to task 
re: that opinion in the past.  Black looking silver plated connectors 
can often be found at bargain prices at hamfests.  I've got a lot in use.
73,
Al, W8UT
www.boatanchors.org
www.hammarlund.info

"There is nothing -- absolutely nothing -- half so much
worth doing as simply messing about in boats"
Ratty, to Mole

On 1/31/2016 1:17 PM, W2HX wrote:
> Someone with a chemistry background should chime in here, but I don't think silver sulfide is an insulator. If I am correct, then there may be no benefit to removing it. In fact if you remove it you will probably also be removing some atoms of the silver as well. Other than for cosmetic purposes, I don't believe it is detrimental. But I could be wrong here and will gladly defer to those that know better.
>
> Whilst typing this, I decided to do some googling. And found some articles. In particular, Tyco says the following about silver and silver sulfide on connectors...
>
> http://www.te.com/documentation/whitepapers/pdf/Ag_use_connectors_503-1016.pdf
>
> "If the quality and level of silver tarnish is not excessive and wipe and sufficient normal
> loads are incorporated into the connector design, silver tarnish typically will not cause contact performance
> problems (Figure 5). The films can even lead to durability and insertion force improvements."
>
> YMMV
>
> Eugene
>