My 1959 Harmon Citation V is still going strong thanks to the capacitor upgrade you did for me in 1978.
These guys are awesome, they repaired my Yamaha M60 amp. Yamaha went to cold solder on their control boards and it cracks after twenty something years of use. Norman's re-soldered all the connections on my board. AMP sounds great 12 years later, it's 35 yrs old this month.