(!) (Pair) 12AU6 RCA NOS 1973 (10.6ma and 10.0ma)

1 Pair) 12AU6 RCA NOS 1973

1 tube) 10.6ma Gm=5100

1 tube) 10.0ma Gm=5200 faded printing

Tested on Amplitrex

Good Ma = 8-10ma

Good Gm = 5000-5400