(!!!!) (Best Pair) 6DJ8 Philips ECG USA by Sylvania NOS 1987 (17.2/20.6ma and 17.0/21ma) 1-3% matched

1 low noise pair) 6DJ8 Philips ECG USA by Sylvania NOS 1987 

1 tube) 17.2/20.6ma Gm=13400/15000

1 tube) 17.0/21.0ma Gm=12700/14500

Matched on Amplitrex

Good Ma range 12-15ma

Good Gm = 12,000 - 13,000