Dave- The THP amp uses a switching power supply, the KPA500 uses a linear supply. There's the major difference in weight. You don't need the heavy transformer in a switcher, but it's harder to make the power supply "radio quiet" without detectable birdies in the ham bands.
73, Bruce, N1RX ______________________________________________________________ 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
