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
