6AW8A Sylvania NOS 1960”s with special silver oxide coating (2.8/28ma)

6AW8A Sylvania NOS 1960”s with special silver oxide coating

1 tube) 2.8ma Gm=3000 and 28ma Gm=11,200

triode: Good Ma=3-3.5ma Gmm Gm=3000-3500

pentode: Good Ma=13ma Good Gm=9000

recommended for:

Shindo Petrus preamp and Shindo amp
Shindo Cortese preamp
Shindo Haut Brion 2010