I have gotten the MX-P50M up and running with my KX3 keying it OK. I was able to get over 50 watts out of the amp into a dummy load with 6 watts from my KX-3 on 160 meters. It turns out to be quite simple to configure once I researched how the amp lead was used for keying with the FT-817 and what the KX-3 provided for keying. The KX3 provides keying via the ACC2 connector on the ring terminal on the 2.5mm stereo plug on an adapter cable. The KX3 grounds the key line while transmitting to enable the amplifier to be keyed. All that was needed was a splice into the red/black lead section intended for the FT-817 DIN connector with a red/black lead terminated with a 2.5mm stereo plug. The red lead goes to the ring on the 2.5mm stereo plug. And that is it. This took more time to figure out than I wanted. Obviously, it would have taken less time if there was a manual with the amp.
Don, KI4D -----Original Message----- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Richard Lawn Sent: Sunday, February 19, 2017 9:46 PM To: elecraft@mailman.qth.net Subject: [Elecraft] Chinese ebay amps for KX3 Has anyone tried the little inexpensive 45 watt amplifiers out of China being sold on ebay with their KX3. I built a BPF for an old Palomar amp but it doesn't seem to work well at all for some reason. 73 Rick W2JAZ ______________________________________________________________ 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 k...@arrl.net ______________________________________________________________ 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
