Heil Sound AD-1-K is the "red" adapter that has an 8-pin "Foster" microphone connector, a 3.5 mm mono ack for the microphone, and a 1/4" mono jack for a footswitch. It's suitable for a K3 as well as a K2 if you wire the microphone configuration header appropriately.
The picture has the wrong color (it's really red), but this is the general look of the adapter: http://www.hamradio.com/detail.cfm?pid=H0-003264 Dick, K6KR -----Original Message----- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Don Wilhelm Sent: Saturday, February 18, 2012 10:10 AM To: Phil Yates Cc: Elecraft@mailman.qth.net Subject: Re: [Elecraft] Mic connector for Yamaha CM500 on K3 Phil, To match the Yamaha CM-500 to the K2, you can purchase the adapter used with the Proset-K2 - and wire the microphone configuration header just as for the Elecraft MH2 microphone - all pins jumper straight across and add the 5.6k bias resistor between mic jack pins 1 and 6. I thought I had the part number for the adapter without the microphone, but I cannot find it, perhaps someone else will supply it. Of course, an adapter should not be difficult to build yourself with a Foster plug and 2 jacks (one for the microphone and another for the PTT input jack. 73, Don W3FPR On 2/18/2012 12:01 PM, Phil Yates wrote: > How would it match up to on the K2. > > Phil > G7BZD > > On Sat, Feb 18, 2012 at 4:56 PM, Dick Dievendorff<die...@comcast.net>wrote: > >> You can plug the Yamaha CM500 microphone and headphone 3.5mm plugs >> directly into 3.5mm jacks on the back panel, and use the K3's SPKR+PH >> capability (which I have set up as PF1) to turn the speaker on and >> off. The K3 has a back panel RCA connector that you may use for >> something like a foot switch, if you prefer PTT. >> >> If you prefer a front panel microphone/headset connection, the Yamaha >> CM500 comes with a 3.5mm to 1/4" phone plug adapter, and you can use >> something like the Heil Sound AD-1-K adapter (or a home-brew >> equivalent) that has an >> 8 >> pin foster plug, a 3.5mm jack for the microphone, and a 1/4" mono >> jack for a >> footswitch like the Heil Sound FS-3. I prefer to keep the footswitch >> connector on the back panel, even if I'm using a front panel headset. >> >> 73 de Dick, K6KR >> >>> Before I order the headset, I am curious as to what mic connector is >> provided if any? I am supposing an 8 pin connector is a required >> purchase for my K3, correct? >>> Griff...N5AG >> >> ______________________________________________________________ >> 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 >> > ______________________________________________________________ > 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 > ______________________________________________________________ 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 ______________________________________________________________ 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
