Hi Joe Whatever devices it uses lets hope that the IMD performance is above average. The last thing we need is another expensive amplifier that is no better than the average cheap CB amp.
What devices does the KPA500 uses? John --- On Fri, 4/16/10, Joe Subich, W4TV <[email protected]> wrote: > From: Joe Subich, W4TV <[email protected]> > Subject: Re: [Elecraft] KPA500 > To: "'Joe Planisky'" <[email protected]>, "'Elecraft Elecraft'" > <[email protected]> > Date: Friday, April 16, 2010, 10:06 PM > > Joe, > > You missed the news ... just a push-pull 2N2222 pair with > liquid nitrogen cooling. > > 73, > > ... Joe, W4TV > > > > > > -----Original Message----- > > From: [email protected] > > > [mailto:[email protected]] > On Behalf Of Joe Planisky > > Sent: Friday, April 16, 2010 7:05 PM > > To: Elecraft Elecraft > > Subject: Re: [Elecraft] KPA500 > > > > > > Nah. It'll be 500 2N2222's. Wayne had a > bunch left over from some > > QRP projects and had to find a way to get rid of > them. :-) > > > > 33-1/3 > > ------ > > Joe KB8AP > > > > > > > > On Apr 16, 2010, at 2:28 PM, Paul Christensen wrote: > > > > >> "I would also think it will be built around > MRF-150 FET's?" > > > > > > Four years ago, the prototype KPA800 used eight > APT ARF 463 > > > transistors > > > (four per RF board). Each plug-in board > would be field > > > serviceable. The > > > prototype KPA1500 in effect doubled the number of > boards and > > > transistors. > > > > > > ... > > > > > Paul, W9AC > > > > > > > > ______________________________________________________________ > > 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 > > > > ______________________________________________________________ > 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 > ______________________________________________________________ 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
