Topband: Soldering aluminum coax shield to copper wire

[Grant Saviers]

Given the thickness of the foil and the likely surface treatment, I 
think soldering is going to be difficult.

I've watched a TIG welding genius butt weld Coors aluminum cans (<0.004" 
thick) together.  That might work.  Maybe a spot weld ala a Si chip wire 
bonder.

Grant KZ1W

On 6/1/2020 19:42, Chuck Hutton wrote:
> Jim -
> 
> Thanks. Of course one can use crimp connectors. There a zillions of those in common use.
> But that was not the question.
> I wish to solder copper wire to the shield.
> 
> Chuck
> 
> ________________________________
> From: Topband <topband-bounces+charlesh3=msn.com at contesting.com> on behalf of Jim Brown <jim at audiosystemsgroup.com>
> Sent: Monday, June 1, 2020 7:20 PM
> To: topband at contesting.com <topband at contesting.com>
> Subject: Re: Topband: Soldering aluminum coax shield to copper wire
> 
> On 5/31/2020 8:56 PM, Chuck Hutton wrote:
>> So what is the easy reliable cheap method to get the job done?
> 
> The only methods I know of are some form of crimp. Many variations of
> RG6 and RG11 with Al shields are widely used in the CATV industry.
> "SnapNSeal" is a widely used brand of Type F connectors that come in
> different physical sizes to fit those different cables, and there are
> crimpers to go with them. I've used these RG6 cables for receive
> antennas for more than 40 years. On one of my gigs almost 50 years ago,
> I installed a lot of MATV outlets in Sears Tower and in apartment
> buildings on Lake Shore Drive when they were under construction.
> 
> The only Al shielded cable I'm using for transmitting is some vintage
> 1/2-in CATV hard line that I inherited from a neighbor SK. That hard
> line has Cu-clad Al center and Al shield. I'm using sections of it for
> parts of the run to two mono-banders. There are photos and text of page
> 6 of http://k9yc.com/Coax-Stubs.pdf showing the method I used. Where I
> used braid, other hams have slit copper tubing in half lengthwise, and
> are also listed on that page.
> 
> 73, Jim K9YC
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