I have a Bottlehead Crack OTL tube amp that I have a few different sets of vacuum tubes...and even though I often chide others about their
wasting their hard earned money chasing audio nirvana by buying high dollar NOS tubes, I have spent some bucks on other tubes as well. But in my paltry defense
I look for the less expensive tubes and try to keep the cost well within the budget!! LOL.
So the point here is that I have taken a liking to a particular RCA 6AS7G Coke Bottle shaped tube and a US Navy stamped 12Au7A variant...my goto tubes!
I bought a real cheap tube for $9.95 and popped it in my Crack and said this is indeed not that good at all...out it went.
For a few years its sits there looking at my asking me "why did you buy me??" lol
So while my Schitt Bimby MB was back at Schitt getting "fixed" I popped this tube in with another dac (ODAC) and started listening..
OMG it was like where did this marvelous sound come from..and that el cheapo not so NOS tube said:
"Been here all the time!! Buddy!!

Good Morning all!
Alex