(!!!) (Best Quad) 6V6 GE metal can NOS 1976 (38, 38, 38.5, 39mA)

1 matched quad) 6V6 GE metal can NOS 1976

1 tube) 38.0mA Gm=3850

1 tube) 38.0mA Gm=4000

1 tube) 38.5mA Gm=3950

1 tube) 39.0mA Gm=4000

Good mA range 35-45mA

Good Gm range 3500-4000+