Why do NOS Tubes sound better than new tubes?

Is manufacturing really that backwards in todays techno world? What is the real reason that todays tubes cannot equal the tubes of yesteryear?

tubed108-26-2011 2:39pm

ebm Details Discussions Posts This discussion Message User 9,311 posts 08-28-2011 at 06:24pm Copy Comment URL Report Comment Edit Delete Because they were made better.