I’m not sure if it’s solid state amps or what. My AL-1200 tube amp is 12 years old and has had a fair amount of use - especially RTTY. The only issue it has ever had is the meter lamps burning out. Ameritron/MFJ sent an LED upgrade kit 6 years ago and they have been fine ever since.
KPA500 and ALS-600 have both been sent back to their respective motherships for transistor finals. About 4 years old for each. Hank K4HYJ > On Jun 21, 2025, at 5:37 PM, Larry Esau via Elecraft > <[email protected]> wrote: > > Mine is 6 years old, Elecraft had it 2 weeks for repair not counting > shipping time, came back 8 weeks ago, replaced both LDMOS, one was dead, amp > put out half power - they also installed several updates, cost $1K. Seemed > reasonable, my Alpha required a blower replacement at about the same age, > and another one since. > > ______________________________________________________________ > 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]

