All this talk about speakers prompted me to resurrect a pair of Apple amplified speakers that have very good frequency response. All was well until I tried 10 and 6 meters - then got the "thumps and bumps" in the form of a loud hum. Tried FOE (ferrite on everything) first with no success. Opened up the speaker and found not one bypass capacitor. I put one (.01ufd) across the power plug, and after zapping the amplifier module, one across each of the stereo amp's power inputs. Perfectly quiet now. Monty K2DLJ
> Some (possibly many) PC speakers include internal amplifiers which can be > susceptible to RFI which results in "thumps 'n 'bumps in the night". > > ______________________________________________________________ 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
