(!!!!) (Best Pair #3) 5670W GE NOS 1986 (7.8/8.8ma and 7.6/8.2ma) 1-5% matched

1 pair) 5670W GE NOS 1986

1 tube) 7.8/8.8ma Gm=5600/6000

1 tube) 7.6/8.2ma Gm=5400/5500

Matched on Amplitrex

Vplate=150V

Vgrid=-1.9V

Good Ma = 6 – 8ma

Good Gm = 5000-5500

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