[TowerTalk] copper tank coils

[W7TMT - Patrick]

Sorry, not sure what's up with the links on Greg's site but I see that cutting and pasting that link does not work while selecting it from his home page directly does..

Article appears on his home page about halfway down under the title "Building High Power, High Q, Loading Coils - Epilogue"

Home Page: http://www.seed-solutions.com/gregordy/Amateur%20Radio/W8WWV%20Experimentation.htm

He makes a series of measurements on aged copper coils and compares them with un-oxidized. Addresses skin effects and the other characteristics.

W7TMT

-----Original Message-----
From: W7TMT - Patrick 
Sent: Saturday, September 30, 2023 13:10
To: TowerTalk at contesting.com
Subject: RE: [TowerTalk] copper tank coils

Greg, W8WWV may have the answers to some of your questions here:

http://www.seed-solutions.com/gregordy/Amateur%20Radio/Experimentation/HiQCoil2.htm

73

Patrick, W7TMT

-----Original Message-----
From: TowerTalk <towertalk-bounces at contesting.com> On Behalf Of Ken WA8JXM
Sent: Saturday, September 30, 2023 11:00
To: Mark, K5AM <k5am at zianet.com>
Cc: TowerTalk at contesting.com
Subject: Re: [TowerTalk] copper tank coils

I expect results would be frequency dependent since the skin effect is frequency related AFAIK.

I have some war surplus rotary inductors made with solid silver wire.
You can add that to your list also :-)

Ken WA8JXM

On Sat, Sep 30, 2023 at 1:45 PM Mark, K5AM <k5am at zianet.com> wrote:

> > Jim wrote:
> > I have wound identical coils using silver plated copper,
> > copper, and also 304 SS.   The aluminum coils ran hot.
> > The SS coils  ran stupid hot.
>
> Interesting!
> It would also be great to see data comparing:
> silver plated copper
> copper
> oxidized copper
>
> 73,
>
> Mark, K5AM
>
> _______________________________________________
>
>
>
> _______________________________________________
> TowerTalk mailing list
> TowerTalk at contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk
>
_______________________________________________



_______________________________________________
TowerTalk mailing list
TowerTalk at contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk