I called Upscale about some 150 tubes for my AR75SE. Deal made, perfectly matched tubes that now have about 2000 hrs on them. Maybe it was because I called with a very specific item in mind. Maybe it was because he knew the no PL Amp could unseat the AR75. Who knows? But I'll be back in another 2500 hrs or so.
"Who puts 4500 hours on output tubes? That can’t be right......"
You’re right ozzy62! Who does that?
I probably have 6K hours on some vintage 6l6G RCA’s. PL is driving tubes on the low end of the spectrum. I’ve noticed they're finally starting to sound weird.
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