[Amps] Skin depth: silver plating of tank circuit coil feasiblewith chemical plating kits?

[Carl]

That certainly explains the origins as well as the myths of today.

Great reading.

Carl
KM1H


----- Original Message ----- 
From: "David Cutter" <d.cutter at ntlworld.com>
To: "Larry Benko" <xxw0qe at comcast.net>; <amps at contesting.com>
Sent: Monday, October 04, 2010 12:36 PM
Subject: Re: [Amps] Skin depth: silver plating of tank circuit coil 
feasiblewith chemical plating kits?


> Great set of tests Larry.
>
> Here is some stuff from the old days which I've posted here a few times:
>
> http://www.k6mhe.com/n7ws/Plating.pdf and
> http://www.k6mhe.com/n7ws/Fowler_Errata.pdf
>
> David
> G3UNA
>
>
>
>
>>  Take a look at http://www.bnk.com/w0qe/inductor_Q_tests.html where I
>> made a bunch of measurements.
>>
>> Silver is a 7% better conductor than copper but at RF the skin depth is
>> inversely proportional to the conductivity so the gain you get from
>> heavy silver plating is only about 3.5% to 4%.  You would be better off
>> to just increase the copper wire size by 1.  As far as beauty is
>> concerned, painting or clear coating the copper has no effect at HF.
>> All the stuff you hear about oxides of silver being conductors are BS.
>>
>> Larry, W0QE
> _______________________________________________
> Amps mailing list
> Amps at contesting.com
> http://lists.contesting.com/mailman/listinfo/amps