One thing that I believe has not been mentioned in this thread is a very simple solution to the hum problem. Since the K3 already has an audio power amplifier, amplified speakers are not really needed. I had an old pair of computer speakers - which hummed every time I transmitted on the K3. Then I just disconnected the amplifiers and connected the inputs directly to the speakers. Now I don't need to connect them to their power supply, and they will of course not hum.
----- Sverre, LA3ZA K2 #2198, K3 #3391 http://www.qslnet.de/member/la3za/K2/mod.html LA3ZA Unofficial Guide to K2 modifications -- View this message in context: http://elecraft.365791.n2.nabble.com/RFI-PC-Speaker-Hum-tp5116897p5119339.html Sent from the [HAM] mailing list archive at Nabble.com. ______________________________________________________________ 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
