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(!!) (PAIR) 12JN6 GE NOS 1970 era (62ma and 60ma)
(!!) (PAIR) 5933 Sylvania NOS and used/good double "D" getters same build 1960's - 1972 (60ma and 55ma)
(!!) (Pair) 6146W GE JAN NOS 1987 (82ma and 84ma)
(!!) (PAIR) 6BQ6GTB=6CU6 Sylvania NOS 1960's (48.5ma and 48.6ma)
(!!) (PAIR) 6BQ6GTB=6CU6 Sylvania NOS 1960's (51ma and 52.5ma)
(!!) (PAIR) 6CL6 RCA NOS 1966-1967 (25.0ma and 26.6ma)
(!!) (PAIR) 6CL6 RCA NOS 1970's (28.5ma and 29ma)
(!!) (Pair) 6GK6 Canada probably by Philips Canada, Holland style construction 1960's used/good (45ma and 46.5ma)
(!!) (Pair) 6GK6 Canada probably by Philips Canada, Holland style construction 1960's used/good (50ma and 52ma)
(!!) (PAIR) 6LX6=6LF6 GE NOS (90ma and 92ma) (same Gm)
(!!) (Pair) 6S4A GE NOS 1969-1970 (24.0ma and 25.5ma)
(!!) (PAIR) 6V6 GE metal can NOS 1976 (34.5ma and 34.0ma) 1-5% matched
(!!) (PAIR) 6V6 GE metal can NOS 1976 (37ma and 38ma)
(!!) (Pair) 71A RCA Victor and Super Silvertone used/good 1930's - 1940's (21.5ma and 25ma) (Same Gm)
(!!) (PAIR) 811 RCA and RCA branded GE like new 1947-1951 (57/36 and 52/36)
(!!) (PAIR) E81L=6686 Siemens made By Valvo, Hamburg, Germany NOS 1968 (13.4ma and 13.8ma)
(!!) (Pair) EL822 Mullard black plate NOS 1973-1974 (40ma and 41ma)
(!!) (PAIR) EL86 GE Japan by Toshiba 1976 era (64ma and 63ma)
(!!) (Recommended Mullard Pair) EL36 Mullard branded International NOS 1969 (82ma and 88ma)
(!!) (Recommended Pair) 1619 RCA NOS 1952 - 1960's (52ma and 53.6ma)