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(!!!!) (3rd Best Pair 1960) 12AX7 Westinghouse NOS gray pinched plates

(!!!!) (3rd Best Pair 1960) 12AX7 Westinghouse NOS gray pinched plates "D" getter 1960 faded printing (1.0/1.0ma and 1.2/0.9ma) 1-5% matched

$ 139.99
(!!!!) (Best Pair) 6EW7 Hitachi Japan branded Westinghouse BIG BOTTLE NOS 1970-1972 (5.5/5.2ma and 52/56ma)

(!!!!) (Best Pair) 6EW7 Hitachi Japan branded Westinghouse BIG BOTTLE NOS 1970-1972 (5.5/5.2ma and 52/56ma)

$ 39.99
(!!!!) (Best Single 1960) 12AX7 Westinghouse NOS gray pinched plates

(!!!!) (Best Single 1960) 12AX7 Westinghouse NOS gray pinched plates "D" getter 1960 era (Gm=1600/1800 and 1.2/1.5ma)

$ 99.99
(!!!!) (Good Value Single) 6SN7GTB Westinghouse USA black plates

(!!!!) (Good Value Single) 6SN7GTB Westinghouse USA black plates "D" getter halo like new 1960 (6.8/7ma)

$ 44.44
(!!!!) (Recommended Pair) 6EW7 Hitachi Japan branded Westinghouse BIG BOTTLE NOS 1970-1972 (4.9/4.6ma and 42/43ma)

(!!!!) (Recommended Pair) 6EW7 Hitachi Japan branded Westinghouse BIG BOTTLE NOS 1970-1972 (4.9/4.6ma and 42/43ma)

$ 37.99
(!!!!) (Recommended Pair) 6EW7 Hitachi Japan branded Westinghouse BIG BOTTLE NOS 1971 (5.3/5.4ma and 58/55ma)

(!!!!) (Recommended Pair) 6EW7 Hitachi Japan branded Westinghouse BIG BOTTLE NOS 1971 (5.3/5.4ma and 58/55ma)

$ 39.99
(!!!!) (SINGLE) 6BL7GTA RCA NOS 1966 (33.4/33.0ma)

(!!!!) (SINGLE) 6BL7GTA RCA NOS 1966 (33.4/33.0ma)

$ 13.99
(!!!) (BEST PAIR) 6BX7GT Sylvania

(!!!) (BEST PAIR) 6BX7GT Sylvania "D" getter halo NOS 1950's (57.6/62.6ma and 64.0/58.0ma) (close triode balance)

$ 44.99
(!!!) (Recommended Black Plates) 12AU7A Westinghouse black plates 1960 era rebranded United 1981

(!!!) (Recommended Black Plates) 12AU7A Westinghouse black plates 1960 era rebranded United 1981 "D" getter halo (8.4/9.8ma) (similar to RCA black plates)

$ 39.99
(!!!) (Recommended Pair) 12B4A Sylvania and Sylvania Westinghouse NOS 1950's - 1960 similar build (42.5ma and 45.5ma)

(!!!) (Recommended Pair) 12B4A Sylvania and Sylvania Westinghouse NOS 1950's - 1960 similar build (42.5ma and 45.5ma)

$ 27.99
(!!!) (Recommended Single) 6BX7GT GE

(!!!) (Recommended Single) 6BX7GT GE "O" getter gray plates 1963 (71/76ma)

$ 18.99
(!!!) (Recommended Single) 6BX7GT GE branded Westinghouse

(!!!) (Recommended Single) 6BX7GT GE branded Westinghouse "O" getter gray plates 1960's (43/48ma)

$ 18.99
(!!!) (Recommended Single) 6BX7GT GE branded Westinghouse black plates NOS

(!!!) (Recommended Single) 6BX7GT GE branded Westinghouse black plates NOS "O" getter 1962 (71/79ma)

$ 21.99
(!!!) (Recommended Single) 6SN7GTB Westinghouse gray plates NOS 1965 (8.6/7.4ma)

(!!!) (Recommended Single) 6SN7GTB Westinghouse gray plates NOS 1965 (8.6/7.4ma)

$ 49.99
(!!!) (Single 1956) 6BX7GT GE triple mica

(!!!) (Single 1956) 6BX7GT GE triple mica "D" getter halo NOS 1956 (41/40ma)

$ 19.99
(!!!) (slightly microphonic) 12AU7A Westinghouse black plates

(!!!) (slightly microphonic) 12AU7A Westinghouse black plates "D" getter halo 1964 NOS (9.6/10.6ma) (similar to RCA black plates)

$ 29.99
(!!!) 6BL7GTA GE branded Marconi NOS 1960 era tilted glass (46/53ma) (High Gm) strong single

(!!!) 6BL7GTA GE branded Marconi NOS 1960 era tilted glass (46/53ma) (High Gm) strong single

$ 12.99
(!!!) 6SN7GTB Westinghouse black plates copper grid posts

(!!!) 6SN7GTB Westinghouse black plates copper grid posts "D" getter 1950's (7.2/8.4ma)

$ 49.99
(!!) (Best Pair #2) 6AN8A RCA NOS 1960's (17.8/14.8ma and 16.8/16.6ma) (Close Gm matching)

(!!) (Best Pair #2) 6AN8A RCA NOS 1960's (17.8/14.8ma and 16.8/16.6ma) (Close Gm matching)

$ 44.99
(!!) (BEST PAIR) 8552 RCA Motorola NOS 1981 (90ma and 90ma)

(!!) (BEST PAIR) 8552 RCA Motorola NOS 1981 (90ma and 90ma)

$ 39.99
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