[TowerTalk] Crimp on Coax connectors

Steve Maki lists at oakcom.org
Sun Sep 8 21:46:22 EDT 2019


On 09/08/19 21:26 PM, Steve Maki wrote:

I meant brass style

> Older Heliax connectors - the bronze style (I'm talking old here) - had 
> solder center pins. Nowadays they are of the captured center pin style, 
> as are most LMR connectors like EZ400's and COMP-400's.
> 
> For braided coax with a solid center conductor, I like connectors that 
> have precision captured center pins, where the (beveled) center 
> conductor squeezes in with force. After installation, it can slide back 
> and forth a tiny bit in the pin if needed due to temperature extremes 
> without breaking anything or moving the pin and losing contact with the 
> mating connector. Which IS a thing. Maybe not with UHF connectors, but 
> with N's, definitely. Not sure if there IS a PL-259 like that, if not, 
> there should be.
> 
> If the center conductor is stranded, there is no captured center pin 
> connector available, for obvious reasons. Well if it's not obvious, it's 
> because it would take a miracle to get all the strands inserted into a 
> precision pin, and there would be no way to know for sure how successful 
> you were.
> 
> In that case take your pick, solder or crimp or both...
> 
> -Steve K8LX
> 
> On 09/08/19 18:56 PM, wc1m73 at gmail.com wrote:
> 
>> One point on crimp vs solder center conductors: All the heliax I've ever
>> used relies on mechanical connections for the shield and center 
>> conductor.
>> There's less flexing, but depending on the application (e.g., not a rotor
>> loop) I don't see why crimp isn't just as good as solder.
>>
>> 73, Dick WC1M
> 



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