The less then two hours refers to the running time before you tighten the mounting screws. They become loose and need to be tightened once after installation. Kurt W7QHD
> From: [email protected] > To: [email protected] > Date: Sat, 12 Nov 2011 11:24:59 -0800 > Subject: Re: [Elecraft] K2 - Time on K2 Finals > > Another 'old school' carryover was to purchase a replacement for a rig's > final(s) since Murphy decreed they'd fail at the most inconvenient time. So > I ordered spares for my K2 when I built it in 2000. > > In spite of all the normal operating gaffs - transmitting briefly into an > open load with infinite SWR too many times, hammering away at the key for > waaaaay too long in a rag chew, etc., the K2 still works like new and the > replacement "finals" are still in my operating desk drawer somewhere... > > Ron AC7AC > > > > -----Original Message----- > > John, > > I don't know of any lifetime issues with the K2 finals or any other > transmitter with a solid state PA. That was an important consideration > with tubes, so maybe it was just an "old school" statement. > > The K2 PA transistors are quite hardy, but if one abuses them > sufficiently (for instance transmitting into a high SWR at high power), > they will turn "belly up" in short order. > > 73, > Don W3FPR > > On 11/12/2011 8:59 AM, John wrote: > > On 11/11/11 10:24 AM, Hunsdon Cary III wrote: > >> rig has less than two hours on the finals; > > Just wondering why "less than two hours on the finals" is important. Do > > K2 finals have a lifetime issue? > > > > > > ______________________________________________________________ > 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
