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(!!) 12AU7A Sylvania NOS 1960 era (11.6/9.4ma)
(!!) (Best Value Pair) 12AU7A Sylvania NOS 1970-1975 (9.0/9.1ma and 9.0/8.8ma) (Close Gm)
(!!!) (Recommended Single 1957) 12AU7A Sylvania gray pinched plates "D" getter halo NOS 1957 (9.2/10.2ma)
12AV6 Lindal Japan NOS (0.9ma Gm=1400)
12AW6 NOS (7 in stock)
(!!) (Good Value Single) 12AX7A GE NOS 1976 (0.9/1.3mA and Gm=1400/1800)
12AZ7 GE black plates "D" getter halo NOS 1955 (11ma/7.5ma)
12AZ7A GE Zenith gray plates NOS "U" getter halo 1960 (15ma/9.6ma)
(!!!) (Best Pair) 12AZ7A Toshiba branded Raytheon Japan gray plates NOS 1960's (11.3/12.3ma and 11.4/11.8ma)
12AZ7A RCA branded Zenith black plates "D" getter NOS 1966 (8.0/8.8ma)
(!) (Pair) 12B4A RCA NOS 1971-1974 (42ma and 36.5ma)
12B4A Sylvania NOS 1960's (33ma)
12B8GT used/good (sold out)
12BA6 Brimar BVA England used/good 1960's (9.2ma)
12BA6 Westinghouse NOS 1951 (13.6ma)
12BA7 NOS (20 in stock)
12BD6 Raytheon NOS (6 in stock)
12BD6 RCA NOS (3 in stock)
12BE6 Westinghouse NOS 1959 (1.4ma)
(Best Single) 12BE6 GE branded RCA NOS 1960's (2.4ma)