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5AT8 NOS sub for 6AT8 (30 in stock)
5AV8 NOS sub for 6AV8 (30 in stock)
(!!!) (Best Single) 5BK7A RCA branded Raytheon black plates NOS 1960's (14/14.3ma) (Highest Ma and Gm)
(READ REVIEW) 5BQ7A GE gray plates NOS large "U" getter halo 1961 -1964
5CQ8 Zenith NOS (3 in stock)
5MB8 NOS (18 in stock)
5X8 NOS (50 in stock)
(!!!!!) (Best Pair #3) EF86 Valvo Germany branded PHILIPS and POPE NOS 1970 (3.6ma/4.0ma)
6CS7 Raytheon by Toshiba Japan gray plates NOS 1970 era (21.5/10.2ma)
(!!) (Good Value Single) JAN-5751 GE double mica gray plates NOS 1987 (2.5/2.6ma) 1-2% section balance
(!!!) (Best Pair) 6FQ7 GE NOS 1970's (9.8/8.8ma and 8.5/9.6ma) (close Gm)
(!!!!) (Best Overall Pair) 6SL7GT RCA NOS black plates gray coated glass 1950's (2.3/2.4ma and 2.2/2.4ma)
(!!!) (Recommended Single) 12AT7 Tungsol rebranded AKRAD "U" getter NOS 1956 (6.2/6.6ma)
(!!!) (BEST VALUE and SOUND) 12AX7=ECC83 Telefunken Germany <> bottom smooth plates used/70-75% 1963 (Gm=1300/1300) (0.6/0.6ma)
(READ REVIEW) 6SL7GT Tungsol tall bottle gray ribbed plates around 1960 (2.2/1.6ma)
(!!!!!) (Best Single) E81CC=6201=12AT7 Philips Mullard UK SQ NOS gold pins 1974 (9.6/10ma) 1-3% section balance
(!!!!) (Recommended GE Pair) 6FQ7 Zenith by GE NOS 1977 1-3% matched (7.0/7.6m and 6.8/7.5ma)
(!!!!) (Recommended Pair) JAN-6922 Sylvania NOS 1977-1979 (14.6/21.4ma and 16.0/21.0ma) (smooth presentation)
6007 Amperex NOS (0 in stock)
6021 probably made by EI Yugoslavia NOS 1970's - 1980's (1 pair)
