That's interesting. Does the KPA500 use a choke input supply? (That would considerably reduce the input current.)
Scott K9MA On Feb 16, 2011, at 11:36 AM, Phil & Debbie Salas wrote: > I ran 240VAC to my shack for my ALS-600. I have the switching power supply, > and the ALS-600 draws very close to 15 amps with the switcher. As my shack > is diagonally across the house from the breaker panel, I was actually seeing > 20VAC drop in the wiring. This caused two problems: Lots of light > flickering in the shack, and sometimes the power supply would trip out > because as the input AC dropped, the input AC current would increase and trip > the ALS-600 switching supply input current sensor. > > However, the KPA500 only draws about 9-amps at 120VAC. While I could set it > up for 240VAC (and I probably will one of these days), at 9-amps there is no > lamp flickering in my shack, no noticable AC voltage drop, and I can put out > the full 500 watts with no problem. > > Phil - AD5X > ______________________________________________________________ > 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 Scott Ellington Madison, Wisconsin USA ______________________________________________________________ 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
