[TowerTalk] DIN to coax connector?

Steve Maki lists at oakcom.org
Wed Sep 7 06:53:10 EDT 2016


RE: crimp-crimp PL-259's - I've never used them, only the crimp-solder 
type. So I have no idea why the warning against soldering the center pin 
on those connectors exists.

AFA DINs for stranded center conductor cable, to me a viable connector 
type would be a single piece (with captivated center pin plus separate 
crimp ring) connector with an open-on-the-end center pin (ala PL-259) 
for flowing solder into.

But such an animal doesn't exist AFAIK. So we are left with the separate 
center pin connectors, which I actually like like a lot for ham use.

Now as to my claim about mechanical superiority, I agree that since the 
outer crimp ring is similar to the crimp PL-259's, the pull out strength 
is probably similar. I guess the warm fuzzy feeling you get with DINs is 
the way they conform to a precise mechanical standard. When you mate a 
male DIN with a female, there is just a very robust feel to it.

-Steve K8LX

On 9/6/2016 9:51 AM, Kelly Taylor wrote:

> Far be it for me to argue with someone in the industry, but…
>
> The DIN install videos I’ve seen suggest the centre conductor is
> soldered into a shallow well inside the connector, almost the way a
> conductor would be soldered to the well inside a chassis-mount
> SO-239. Considering the centre conductor of a PL-259 passes through
> to the end of the connector and is soldered there, with perhaps a
> greater degree of conductor-solder-connector contact to grip the
> conductor, and given the crimp-and-solder style PL-259s employ a
> similar clamping scheme to DINs, I’m just curious about the statement
> regarding mechanical superiority.
>
> It seems the centre conductor might be the weak link. Can you
> clarify, Steve?
>
> As for the crimp-crimp style PL-259s, is there a valid reason the
> instrux typically warn against soldering the centre conductor?





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