I question the 4:1 balun being the correct nor best choice. Typical of that antenna the feed Z of the radiator is more likely 25 to 35 ohms. The 4:1 balun is presenting something like 10 ohms to the tuner. Worst case for high current and hi loss in the tuner causing heating. A 1:1 balun would seem more likely correct.
Many seem to "think" a 4:1 balun is correct when using open wire or a balanced line to "match the line". Bob, K4TAX Sent from my iPhone > On Feb 24, 2018, at 8:59 PM, Jim Brown <[email protected]> wrote: > > Someone should tell the electrons. UHF connectors have been standard on legal > limit power amps for as long as I've been a ham. > > 73, Jim K9YC > >> On 2/24/2018 1:46 PM, Walter Underwood wrote: >> The Amphenol voltage rating for UHF connectors is 500 V peak. So the >> connectors could be another weak point. >> >> https://www.amphenolrf.com/connectors/uhf.html > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[email protected] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to [email protected] > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected]

