[Elecraft] Connectors

Walter Underwood wunder at wunderwood.org
Mon Jul 12 19:14:31 EDT 2021


Silver oxide is a good conductor, but the tarnish we see is silver sulfide,
which is a semiconductor. That causes problems at low voltages.

This StackExchange answer has more details: https://physics.stackexchange.com/a/365483

wunder
K6WRU
Walter Underwood
CM87wj
http://observer.wunderwood.org/ (my blog)

> On Jul 12, 2021, at 4:06 PM, Bob Liesen <wb0poq at gmail.com> wrote:
> 
> Hi gang,
>  I have been told by several people who are clearly in the know of many
> things, that tarnished silver is a >better< conductor than untarnished.
> And I have also been told by others just as in the know, that that is a
> myth.
> Anyone have definite info?
> 
> Bob  WB0POQ
> 
> On Mon, Jul 12, 2021 at 4:11 PM Bill Frantz <frantz at pwpconsult.com> wrote:
> 
>> I was told that all the compounds produced when silver is
>> tarnished are conductive. So, when I built a single-lever
>> paddle, I used two short pieced of silver wire, obtained from a
>> jeweler friend, at right angles for the contacts. I haven't had
>> any contact problems with that paddle.
>> 
>> 73 Bill AE6JV
>> 
>> On 7/12/21 at 3:35 PM, wes_n7ws at triconet.org (Wes) wrote:
>> 
>>> On 7/12/2021 11:47 AM, Paul Dluehosh wrote:
>>>> ...They may look ugly with a black patina, but that may be
>>>> because they have real silver plating.
>>> 
>>> That's what TARN-X is for.
>> 
>> -----------------------------------------------------------------------
>> Bill Frantz        | Privacy is dead, get over | Periwinkle
>> (408)348-7900      | it.                       | 150 Rivermead
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>> NH 03458



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