(!!) (Best Value Pair) 12AU7A RCA MEXICO NOS "TOP GETTER" original boxes 1970's (9.2/11.4ma and 9.4/10.6ma)

1 low noise pair) 12AU7A RCA MEXICO NOS "TOP GETTER" original boxes 1970's 

1 tube) 9.2/11.4ma (Gm=2100/2200)

1 tube) 9.4/10.6ma (Gm=2100/2100)

Matched on Amplitrex AT1000

Good Ma range 8-10ma

Good Gm range 1800-2200