I have had the same issue as K6CG. There is a "thump" or "spike" with the K3 on turn on, I also use powered external speakers, M Audio AV40's. I have a master kill switch that kills the shack with the exception of lights and clock. Turn on of the master switch and having left the accessories on was not the way to go. Some still come on with the "big" switch but the sequence of Big switch, Astron 13 volt PS, K3 & P3, and then the external powered speakers while not fixing the problem effectively buries it. Use the same in reverse at shutdown.
Changing the sequence may be a simple solution. 73, Bob K2TK On 5/1/2012 2:31 PM, Mike K2MK wrote: > Hi Richard, > > Do you have the problem if you only use the internal speaker? Is your > firmware up to date? > > 73, > Mike K2MK > > > > Richard Thorpe-2 wrote >> Is there any way to stop the tooth rattling turn on and turn off thump >> from the K3? It can't be good to have a blast of DC go through my external >> speakers I jump every time this happens. >> >> K6CG >> > ______________________________________________________________ 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
