Hello Roger -
I'm going to be making a tube purchase and have been looking over your TubeAudioStore website. After reading the information there I'm a bit confused. You mention that tubes are graded "A", "SA", "BB, and "CC", but when I look at the tubes listed for sale I only see one version for sale, with no grade shown (except for the low noise, super low noise choices on some of the preamp tubes). Am I missing something?
Also, on the power tubes page, only one tube is branded "RAM" (a KT88). Does this mean the other non RAM tubes aren't tested as thoroughly, or are a lower grade?
Thanks for your help.
Steve