On Tue, 24 Feb 2009 13:02:58 -0800, JIM DAVIS wrote: >Many thanks for saving our "BABY!"
Several thoughts. First, the K3 is isolated from the AC line by whatever DC supply you are using with it. For many years, I've run the 12VDC powered equipment in my hamshack from a big battery that is float-charged from a regulated 10A supply. A poor man's UPS, with excellent surge protection -- ON THE POWER LINE. There is, however, another MAJOR issue. Voltage spikes are also coupled to the power system ground (green wire) by all those nasty MOVs in power strips and office equipment throughout your home, and they can significantly raise the voltage on the green wire if the spike is BIG. That can cause failures if something connected to one of those outlets and another ground has a pin 1 problem -- and like most ham rigs, the K3 has several pin 1 problems on the KIO3. 73, Jim Brown K9YC ______________________________________________________________ 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
