Came in not quite working.. channel switching issues and not much volumeGreat set of tubes Straight out the case and dustyDust removed! and all tubes tested good, great match on the EL34 output tubes!PCBs and Chassis mount socketsMmm these switching FETs were bent and shorting.. easy fixWiring tidied up and all minor issues sorted outOutput tubes biaed up correctly and sounding good (one very loud flexible amplifier)Back in the cleaned up caseRear grill back onAll good to go. survived the burn in! no issues at all, shold be a reliable amp now! Laney 100 Watt head in for a service/repair.. reliability and channel switching problems. All cured and working well!