I’ve read articles over the years as to how manufacturers voice their equipment. As I’m currently trying out some Raytheon 6ns7s on my Supratek preamp, I’m appreciating the added detail and warmth. They are replacing Tung-Sols.
So I was wondering if there is any consistency as to materials used, the design, purity of the metals, etc as to really fine tuning how a certain tube can/will sound.
Also, if some of the nos tubes were so excellent, what’s involved nowadays in trying to duplicate that?
A final thought…. getting back into tubes has brought back such fond memories when I was a kid and would occasionally make trips to the store to test tubes. As I vaguely recall, even the grocery store we frequented had a tester. But that was so very long ago.