(!!) (Recommended Pair) 12SN7GTA RCA black plates NOS 1962-1963 (9.0/8.6mA and 8.2/9.6mA)
(!!!) (Good Value Pair) 12SN7GTA GE coin-base side getter NOS 1981 (7.8/7.4ma and 7.6/7.6ma) 1-3% matched