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(!!!) (Recommended Single 1961) 12AX7 BRIMAR England BVA ribbed plates used/very good 1961 (1.4/1.7mA and Gm=1400/1600)
(!!!) (Recommended Single) 12BH7A Westinghouse black ribbed plates "U" getter halo 1961 (8.5/10ma)
(!!!) (Recommended Single) 5881 Tungsol NOS 1954 (77ma)
(!!!) (Recommended Single) 6BX7GT GE "O" getter gray plates 1963 (71/76ma)
(!!!) (Recommended Single) 6BX7GT GE branded Westinghouse "O" getter gray plates 1960's (43/48ma)
(!!!) (Recommended Single) 6BX7GT GE branded Westinghouse black plates NOS "O" getter 1962 (71/79ma)
(!!!) (Recommended Single) 6SN7GTB Westinghouse gray plates NOS 1965 (8.6/7.4ma)
(!!!) (Recommended Single) EF94=6AU6 Tungsol used/tests like new 1957 (10ma)
(!!!) (Single 1956) 6BX7GT GE triple mica "D" getter halo NOS 1956 (41/40ma)
(!!!) (Single) 12AX7=ECC83 Philips Holland NOS 1971 (1.2/1.3ma and Gm=1800/1800) 1-2% section balance
(!!!) (slightly microphonic pair) E182CC=7119 Mullard SQ Holland NOS "O" getter halo 1963 (33.8ma/33.8ma and 35.2/34.4ma) (Same Gm)
(!!!) (slightly microphonic single) ECC801S Telefunken <> bottom rebranded 12AT7/ECC81 Telefunken NOS 1962 (9.2ma/10.2ma)
(!!!) (~ Best Value Single ~) EL84 Brimar England low hours/tests like new 1961 (50ma)
(!!!) 12AU7WA Mullard branded Chelmer Valve used/good 1961 (7.7/8.8ma)
(!!!) 6B4G Tungsol NOS 1940's (81ma)
(!!!) 6EU7 GE NOS pinched gray plates 1970 (48/32 and 50/32)
(!!) (2nd BEST SYLVANIA PAIR) 6X4 Sylvania Philco NOS 1959 "D" getter (53-55/40 and 55-56/40)
(!!) (Best CBS Single) 6SN7GTB CBS black plates side-getter NOS, the same shape as Sylvania 6SN7GTB 1959 (8.0/8.2ma)
(!!) (BEST PAIR) 272A Western Electric NOS "meshplate" 1961 and 1969 (6.1ma and 6.4ma)
(!!) (Best Pair) 6J6A Tungsol NOS "D" getter 1961 (9.4/10.5ma and 9.0/11.4ma)