I'll add my two cents about switching power supplies here as well. I bought an HPS-1a PS from Gamma Research. This is a tiny switching power supply not too much larger than a deck of cards, yet it can deliver about 100W voice, and maybe 80W slow CW with my K2. It is marketed as a "hybrid" PS because it uses a great bit of capacitance to smooth out the duty cycle, all fed by a small, switching PS.
In a nutshell, this little switching PS works great. I use it in my home shack sometimes, and when I set up in my backyard (not quite a DXpedition, but fun...) and have not noticed any noise. On the down side, this particular unit was a bit expensive. Anyway, I am a new ham, and originally was convinced by what I read that one should avoid switching PSs at all cost. Perhaps switching PSs are better engineered now than in the past. When my main supply -- all iron, size and heat -- gives up the ghost, I'm replacing it with a modern, efficient switcher. Cheers, Doug K8EXB ____________________________________________________________ Publish your photos in seconds for FREE TRY IM TOOLPACK at http://www.imtoolpack.com/default.aspx?rc=if4 ______________________________________________________________ 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
