Thanks for the help in this solution. That was exactly the problem. I have disconnected my Ameritron Model ARB-704 from the KPA500 and substituted it with a homemade connector using the remote connector pins 2 & 4. Before this TS-2000 was pushed into duty as the replacement for the ailing K3, it was being used as a MARS station connected to Collins 30L1 amp which exhibits a high negative voltage (-120VCD) for the keying circuit, hence the Ameritron.
Jerry's world is now at peace! Best regards, Jerry, W1IE ______________________________________________________________ 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 Message delivered to [email protected]

