(!!!) (Recommended Pair) 6JT6A RCA rebranded GE and Amperex NOS 1970 era (66ma and 67ma) Title: 6JT6A GE branded RCA NOS pair

1 pair) 6JT6A RCA rebranded GE and Amperex NOS 1970 era same build

1 tube) 66ma Gm=7100

1 tube) 67ma Gm=7400

Matched on Amplitrex

Good Ma = 60-80ma

Good Gm = 6500-7000