I can not believe hams who do not want switching mode supplies in their shack. This precludes the use of a computer in the shack. It also means no TVs, printers, and a host of other products. There is also a false notion that so called linear supplies do not cause RFI. Study Dirac's delta function and you will understand why they can. Love my two K3s George, W6GF
--- On Wed, 5/11/11, Al Lorona <[email protected]> wrote: From: Al Lorona <[email protected]> Subject: Re: [Elecraft] KPA500 - linear power supply To: Date: Wednesday, May 11, 2011, 9:04 AM One of the inviolable rules in the W6LX shack is: NO SWITCHING POWER SUPPLIES. Not to make an incendiary statement, but *all* of them generate RFI. Many people will tell you that they've never heard RFI from their switching power supplies, but often it's just because they don't know what it sounds like or they haven't tuned across the right frequency. Why raise the noise floor by even half a dB if you can help it? Nothing beats a old-fashioned, big, beefy, and quiet linear power supply. Al W6LX ______________________________________________________________ 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 ______________________________________________________________ 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
