Jim I know of a military amplified loudspeaker which *should not* suffer from RFI, since it passed the required emc specs for land vehicles. They're nothing like $3000, but certainly not really for amateur budgets. Starting with a metal enclosure helps a lot. I have a few rejects if anyone is interested - off list.
David G3UNA ----- Original Message ----- From: "Jim Brown" <j...@audiosystemsgroup.com> To: <elecraft@mailman.qth.net> Sent: Tuesday, December 22, 2009 6:30 PM Subject: Re: [Elecraft] Spurious > On Tue, 22 Dec 2009 11:20:48 -0600, Tom Hammond wrote: > >>I personally prefer UNamplified Motorola Mobile speakers, available >>regularly on EBay for $10 or less. > > Yes > >>The AMPLIFIED Motorola speakers are also good, but require external >>power. > > I haven't seen any of these. BUT -- be VERY cautious with amplified > speakers. In my short life (68 years), I've seen a LOT of amplified > speakers, and I've only seen one that didn't suffer from RFI. It cost > $3K. > > 73, > > Jim 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 ______________________________________________________________ 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