mint maco 300.Its been sitting in a basement for over 30 yrs.So i replaced caps and tubes...Used my rci2980wx at 3am 10 ssb...it will do 45 on ssb but its a low drive amp.I fired it up and let it warm up while making another pot of coffee.Well things where running good,till i blew the circet breaker,hehe...i had plugged it into the same circut that my oxygen machine was on...I am having a frend run 110v 30amp line to the radioroom,like he did my 220v...i fired it up and turned off machine and used my little tank of oxygen and was clean on am/ssb on 10 and 12 and 15mtrs...so have backup for my ft2100b...hehe73s de JW late note, might change tubes to 572b latter.