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Good day,

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On 27-Jul-07 at 08:29 Peter Vince wrote:

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>I was surprised to read that crimping is considered most reliable...

        <BigSnip>

        There is some truth in your tale about the crimps in the broadcast 
world, but you are also correct to point out that "adequate" (I like to say 
"proper") crimping is critical to making the connection reliable.

        In the avionics world, it is rare that you will find a soldered 
connection in the wiring harnesses. 99.9% of everything in there is crimped. 
The difference is that the various contacts and plugs, both conventional and 
coaxial, are attached by well-trained folk using the best available tools.

        When properly done, with the right cable prep (ideally, thermal 
strippers) and the right crimping tools (mil-spec hex crimps for the coaxials, 
mil-spec eight-way indent for the conventionals), a crimp connection has the 
same strength and gas tightness of a cold weld. I've been fortunate, over the 
years, to have gotten hold of the right tools and dies for everything I do 
through Boeing's surplus store. The contents of one of my tool chest drawers 
would have run into five figures worth of spending had it not been for them.

        Keep the peace(es).


-=-=-=-=-=-=-=-=-=-=-=-
Bruce Lane, Owner & Head Hardware Heavy,
Blue Feather Technologies -- http://www.bluefeathertech.com
kyrrin (at) bluefeathertech do/t c=o=m
"If Salvador Dali had owned a computer, would it have been equipped with 
surreal ports?"


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