Bob discusses efficiency of reduced power at the 19 minute mark of this presentation:
https://www.youtube.com/watch?v=07YxLGR5UPU 73 de Dick, K6KR -----Original Message----- From: [email protected] <[email protected]> On Behalf Of Barry Simpson Sent: Tuesday, September 14, 2021 15:15 To: Elecraft Mailing List <[email protected]> Subject: [Elecraft] KPA1500 Power Level I have had a quick look through the KPA1500 manual and could not find any reference to running the amplifier at a lower power level than the rated 1,500w. Can anyone comment on the implications (eg temperature, efficiency and IMD) of running a KPA1500 at say 500w by simply reducing the drive power. Would the power level be stable if set to 500w or would it drift upwards or downwards during the course of an over on CW ? Thanks Barry Simpson VK2BJ ______________________________________________________________ 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 Message delivered to [email protected] ______________________________________________________________ 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 Message delivered to [email protected]
