(!!) (Recommended Pair) 6AG7 RCA NOS 1960”s same date codes (27.5ma and 29.2ma)

1 matched pair) 6AG7 RCA metal NOS brown bottom 1960”s same date codes (AC)

1 tube) 27.5ma Gm=10,700

1 tube) 29.2ma Gm=10,600

Good mA range 25-32ma

Good Gm range 10,000 – 12,000