Ted, Elecraft did publish an add on circuit to drive an amp from the K2. The bad news is that I can not find it on their new website. Tom Hammond N0SS (SK) designed a PC Board for an amp keying circuit which is no longer available. However he published the schematic which you can find here:
N0SS K2 amp keying circuit <http://www.mmccs.com/mmarc/n0ss/k2_t-r_rly_drvr.pdf> I hope the link works. I have not tried this circuit with a KPA500. Lou W2ROW -- Sent from: http://elecraft.365791.n2.nabble.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 arch...@mail-archive.com
