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Re: [TowerTalk] Fwd: Using aluminum wire [or aluminum clad wire]

To: towertalk@contesting.com
Subject: Re: [TowerTalk] Fwd: Using aluminum wire [or aluminum clad wire]
From: Pete Smith <n4zr@contesting.com>
Reply-to: n4zr@contesting.com
Date: Thu, 30 Dec 2010 16:03:02 -0500
List-post: <towertalk@contesting.com">mailto:towertalk@contesting.com>
You can even get flooded wirenuts at Home Depot.

73, Pete N4ZR

The World Contest Station Database, updated daily at www.conteststations.com
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On 12/30/2010 3:29 PM, Hans Hammarquist wrote:
>   It is the square, hard pin that is the secret behind the good and reliable 
> connection of wire wrapped connections. You will not even get a close result 
> if you wrap a wire around a round pin. (Been there, done that, and that was 
> tin plated Cu wire on tin plated Cu pins.) You have the same mechanism with 
> wire nuts. Inside the nut is a spiral spring made of square wire. The sharp 
> corners will press themselves into the softer metal in the conductor and form 
> a "gas tight" connection.
>
> I wonder if we can use wire nuts to make the connections to Al wires in 
> antennas. Simple and cheap. Any comments?
>
> Hans - N2JFS
>
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> -----Original Message-----
> From: Tod - ID<tod@k0to.us>
> To: towertalk@contesting.com
> Sent: Thu, Dec 30, 2010 11:40 am
> Subject: [TowerTalk] Using  aluminum wire [or aluminum clad wire]
>
>
>
>
> One does not need to solder wire to assure good conductivity between two
>
> pieces that are 'connected' together. Western Electric ran experiments in
>
> the 'middle ages' of technology that showed wrapped joints would actually
>
> have better conductivity than soldered joints. The result was that the
>
> telephone switching centers had wire wrapped connections rather than
>
> soldered connections. The technique had cost and simplicity advantages as
>
> well. Many of our initial commercial computers had wire-wrapped backplanes.
>
> The Western Electric experiments used copper, not aluminum and the pins that
>
> were wrapped with wire were square in cross section, not round.
>
>
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> _______________________________________________
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