[R-390] Balanced Antenna Connector

[jtbrannig]

I put a bit of solder on the coax center conductor and attached the braid with a circular clamp.The other end of the short coax has a  connector of your choice.JimWB2TPSSent from my Galaxy
-------- Original message --------From: Barry Scott <72volkswagon at gmail.com> Date: 10/9/24  2:37 PM  (GMT-05:00) To: R-390 Mailing List <r-390 at mailman.qth.net> Subject: Re: [R-390] Balanced Antenna Connector BTW, I thought that an "IBM" twin-ax connector was supposed to fit butthis connector seems different and doesn't match the twin-ax connectorI have.The two holes have 0.100" IDs and the threads appear to be closer toan SO-239 but, naturally, it isn't an SO-239 since it has two pinsockets.Thanks,Barry - N4BUQOn Wed, Oct 9, 2024 at 1:20 PM Barry Scott <72volkswagon at gmail.com> wrote:>> What is the correct designation for the two-pin antenna connector> (balanced) in the R-390/URR (likely the same for the R-390A/URR but I> want to be specific just in case).>> Also, I think Chuck Rippel had a connection contraption that used a> resistor (or two) so that 50-ohm unbalanced would match just a bit> better using the balanced connection.  He had a website that depicted> that but I don't know if that still exists.  Anyone know?>> Thanks,> Barry - N4BUQ______________________________________________________________R-390 mailing listHome: http://mailman.qth.net/mailman/listinfo/r-390Help: http://mailman.qth.net/mmfaq.htmPost: mailto:R-390 at mailman.qth.netThis list hosted by: http://www.qsl.netPlease help support this email list: http://www.qsl.net/donate.html