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:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html