HWB3
1000+ Head-Fier
Interesting article. I have a WE396A in my Vali 2++ and enjoy it. My other tubes for it are a GE 5670 5-Star and a JAN 5670W so I'm in pretty good shape.They were meant to last, as well as to survive repeated on/off cycles. Best part is that they sound great, too!
edit: good reading here! https://www.audiocircle.com/index.php?topic=148150.0