(!!!!) (Best Pair #2) 5670W GE NOS 1986 (9.4/11ma and 9.8/11.6ma) 1-5% matched (Highest Ma and Gm)

1 pair) 5670W GE NOS 1986

1 tube) 9.4/11.0ma Gm=6200/6500

1 tube) 9.8/11.6ma Gm=6400/7100

Matched on Amplitrex

Vplate=150V

Vgrid=-1.9V

Good Ma = 6 – 8ma

Good Gm = 5000-5500

5670=2C51=396A=6C3P=6N3P