Phil, You may want to isolate all three key lines using one of the many keying buffers available. At an absolute minimum, consider using three steering diodes if only using a splitting RCA jumper cable from the K3 to the amps, using one diode (e.g., 1N4007 or if necessary, a Schottky type) for each amp key line from the K3 with all the cathodes combined together and pointing back to the K3 amp key line.
The ne-plus-ultra solution for selecting one of three amps from one of three rigs may be available in the very near future from W8ZR... http://www.w8zr.com/homebrew/StationPro.htm Paul, W9AC ----- Original Message ----- From: "Phil LaMarche" <[email protected]> To: <[email protected]> Sent: Wednesday, December 16, 2009 4:28 PM Subject: [Elecraft] K3 Amplifier Keying > My K3 will be keying 3 amplifiers....144...50 and HF. I have two amp > keyers > that can be used or just one. Should I find an RCA cable with 3 females > and > one mail or does anyone have a better suggestion. > > Thanks > > Phil > > > Philip LaMarche > LaMarche Enterprises, Inc. > <http://www.instantgourmetspices.com/> www.instantgourmetspices.com > > www.w9dvm.com <http://www.w9dvm.com/> > 800-395-7795 pin 02 > 727-944-3226 > FAX 727-937-8834 > NASFT 30210 > > K3 #1605 > > CCA 98 00827 > CRA 1701 > > W9DVM > > > > ______________________________________________________________ > 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 > ______________________________________________________________ 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
