Hi Tony, Sounds like you might have lost one of the LDMOS devices.
73 Dave wo2x Sent from my waxed string and tin cans. > On Jul 7, 2021, at 7:16 AM, N2TK via Elecraft <[email protected]> > wrote: > > Thanks Larry.Just wanted to confirm what I was seeing wasn't normal.All of a > sudden with 25W drive I get Pwr - 530WCurrent - 29AVoltage - 53V with no > drive or 25W drive. > N2TK, Tony > > -----Original Message----- > From: Larry (K8UT) <[email protected]> > To: [email protected]; [email protected] <[email protected]> > Sent: Wed, Jul 7, 2021 4:35 am > Subject: Re: [Elecraft] KPA1500 parameters > > 25 in, 1322 out, 43% efficiency, 51.7 volts @ 59 amps with 1.5:1 SWR. > > (see screenshot) > > -larry (K8UT) > > ------ Original Message ------ > From: "N2TK via Elecraft" <[email protected]> > To: "[email protected]" <[email protected]> > Sent: 2021-07-06 23:48:27 > Subject: [Elecraft] KPA1500 parameters > >> What do you typically see for Power Out, Voltage and Current with 25 and 30W >> drive on 20M?TnxN2TK, Tony >> ______________________________________________________________ >> 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] ______________________________________________________________ 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]
