Any off the shelf stereo to mono splitter will do that. That also gives cleaner bias for the mic. Details in this blog post.
https://observer.wunderwood.org/2015/08/16/yamaha-cm500-headset-with-ptt-on-elecraft-kx3/ <https://observer.wunderwood.org/2015/08/16/yamaha-cm500-headset-with-ptt-on-elecraft-kx3/> On the KX3, PTT does not need to be across the rings. Ring 2 (logic ground) is tied to the shield (audio ground) inside the radio. I hear that the KX2 is wired the same as the KX3. wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On Mar 31, 2017, at 5:38 PM, Christopher Hoover <c...@murgatroid.com> wrote: > > I would like an adapter for the KX2 that breaks out the microphone and PTT > switch on the mic input TRRS into 3.5mm mic and 3.5mm PTT. > > All of TRRS splitters (mostly designed or CITA mic/phone sets) aren't > helpful given the KX2 mic input pinning. > > Idea is simple: microphone across tip and shield, PTT across the rings. > > I made up my own adapter, but I'd pay for a more robust one with proper > strain relief and over-molding. > > -ch > 73 de AI6KG > > > > On Wed, Mar 29, 2017 at 6:35 PM, Wayne Burdick <n...@elecraft.com> wrote: > >> Hi all, >> >> The weather's been great in the Bay Area lately. That always makes us want >> to escape the lab for microDXpeditions to local parks, trails, beaches, and >> summits. This is what the KX-line is all about. >> >> Here's your chance to get us back into the lab :) What future >> accessories, antennas, etc. would you like to see for the KX-line? >> >> 73, >> Wayne >> N6KR >> >> ______________________________________________________________ >> 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 c...@murgatroid.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 wun...@wunderwood.org ______________________________________________________________ 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