UG-1185's have captive center pins to avoid this problem. Caution: There are two ways the Teflon spacers can be assembled. The recessed sides face outward.
73 ! K0PP On Tue, Sep 18, 2018, 09:30 Dr. William J. Schmidt <b...@wjschmidt.com> wrote: > > [[The next time someone challenges me on why I only use BNC and Type N > connectors, I’m going to send them this entire discussion.]] > > Unfortunately this is not perfect either. If you use an "N" connector on > long runs of heliax in a cold climate, you must be aware that the > coefficients of expansion of the center conductor and the shield can be > different... and on several occasions, I have seen the center pin pull back > from the connector (and essentially disconnect) because the center > conductor contracted more than the shield. Nb. This does not happen with > all "N" connectors. This is less of a problem with BNC connectors because > the coax used is generally has a somewhat flexible shield. > > > > > --- > This email has been checked for viruses by AVG. > https://www.avg.com > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to kengk...@gmail.com ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
