Bill, I don't know about "faster switching", but normally in a T/R switch, the diodes must be reverse biased with a DC voltage higher than the peak RF voltage to be encountered.
73, Don W3FPR On 8/7/2011 3:25 PM, Bill wrote: > Since there does not seem to be any schematic diagrams posted yet for the > KPA500 I am wondering what the 270 volts from the power supply is used for. > My guess would be that it maybe used for the T/R swithching and the higher > voltage insures faster switching but that is just a guess. Don or anyone do > you know? > > Thanks& 73, > Bill - K6WLM > ______________________________________________________________ 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

