Hi Mike,
Captivated pin N connectors for hardline coax fits tightly over
the center conductor.
Captivated pin N connectors for flexible coax typically has a
pin that requires solder.
Floating pin N connectors belong in the trash bin.
73
Frank
W3LPL
----- Original Message -----
From: "Mike Waters" <mikewate@gmail.com>
To: lists@oakcom.org
Cc: "topband" <topband@contesting.com>
Sent: Saturday, December 8, 2018 12:10:38 AM
Subject: Re: Topband: Rather use N-type (was Re: The answer to PL-259
The one I have in my hand has a solder hole in it. I take it that there are
newer ones that have contacts that grip the coax center conductor?
73, Mike
www.w0btu.com
On Fri, Dec 7, 2018 at 6:04 PM Steve Maki <lists@oakcom.org> wrote:
> Well here's the advantage of captivated center pins: the pin is NOT
> bonded to the center conductor. IOW, if the coax center conductor
> shrinks a bit, it can slide in the center pin and the pin stays put.
>
> And that's exactly what you want it to do - especially with an N connector.
>
> -Steve K8LX
>
>
> On 12/07/18 14:25 PM, Mike Waters wrote:
>
> > Exactly my experience, even with captivated pins!! And my coax runs were
> > only about 100' long.
> >
> > The captivating washers were made of Teflon®, *and Teflon cold flows*.
> This
> > was when I lived in Toledo, Ohio when the temperature dropped well below
> > zero.
> >
> > Four photos of those N connectors are at
> > http://www.w0btu.com/files/misc/N_plugs . See the last two.
>
> > On Fri, Dec 7, 2018, 1:02 PM Richard (Rick) Karlquist <
> richard@karlquist.com>
> > wrote:
> >
> >> My two 500 foot RG-216 military surplus cables both eventually exhibited
> >> retracted pins on the type N connectors at both ends. I replaced them
> with
> >> PL-259's. ... Success anecdotes about install once and never touch
> again
> >> commercial sites are probably not relevant to ham applications.
>
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