I have a lot of NOS tubes, in baggies, by type. I use them as replacement for Gold Lions reissues that fail. I keep waiting but none of the 12's will fail. I quit buying NOS Tubes maybe 15 years ago. Price vs. Performance became an issue as the product became more and more scarce and costly. Looking back, I was buying NOS tubes to make gear sound better so, I just started buying better gear LOL.
