It’s not likely directly due to the fact that they are solid state amps. BSEE and MSEE here as Larry Esau can attest to...
> On Jun 22, 2025, at 10:30 AM, Hank Blackwood via Elecraft > <[email protected]> wrote: > > 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] ______________________________________________________________ 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]
