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(!!) (Best Single) USN-CHS-5963=12AU7 Sylvania NOS

(!!) (Best Single) USN-CHS-5963=12AU7 Sylvania NOS "D" getter 1959 (10.6/11.8ma)

$ 14.99
(!!!!) (Best Single #1) 12AU7=ECC82 Mullard UK shield logo NOS 1965 (11.2/12.6ma) (smooth rich sound)

(!!!!) (Best Single #1) 12AU7=ECC82 Mullard UK shield logo NOS 1965 (11.2/12.6ma) (smooth rich sound)

$ 144.44
(slightly microphonic tube) 12AU7A RCA tall black ribbed plates

(slightly microphonic tube) 12AU7A RCA tall black ribbed plates "D" getter halo used/good 1950's (8.2/8.8ma)

$ 15.99
JHS-12AU7 Sylvania

JHS-12AU7 Sylvania "black plates" with "D" getter used/mis-matched sections (7.6/12ma)

$ 24.99
ECH42=6CU7 International Germany NOS made by La Radiotechnique France early 1960's (3 in stock)

ECH42=6CU7 International Germany NOS made by La Radiotechnique France early 1960's (3 in stock)

$ 12.99
ECH42=6CU7 Valvo Germany NOS made by La Radiotechnique France early 1960's (2 in stock)

ECH42=6CU7 Valvo Germany NOS made by La Radiotechnique France early 1960's (2 in stock)

$ 12.99
(!!!) (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
E83F=6689 Philips Holland NOS 1974 (10.4ma)

E83F=6689 Philips Holland NOS 1974 (10.4ma)

$ 34.99
(!!) (Best Tunsol Single) 12AU7A Tungsol ribbed plates NOS

(!!) (Best Tunsol Single) 12AU7A Tungsol ribbed plates NOS "U" getter halo 1957 (9.8/10ma)

$ 59.99
(!!!!) (Single) EF89=6DA6 Telefunken Germany <> bottom NOS 1966 faded printing (9.6ma)

(!!!!) (Single) EF89=6DA6 Telefunken Germany <> bottom NOS 1966 faded printing (9.6ma)

$ 43.99
(!!) (Best Value Single 1953) 12AU7 Sylvania black plates

(!!) (Best Value Single 1953) 12AU7 Sylvania black plates "D" getter used/strong 1953 no printing (9.6/11.8ma)

$ 39.99
(!!!) 12AU7A GE

(!!!) 12AU7A GE "U" getter low hours/tests like new 1957 (10.0/8.8ma)

$ 24.99
(!) (Single) USAF-5814A=12AU7WA GE triple mica like new 1962-1963 (11.4/12.0ma) (same Gm)

(!) (Single) USAF-5814A=12AU7WA GE triple mica like new 1962-1963 (11.4/12.0ma) (same Gm)

$ 54.99
7247=12DW7 GE branded RCA used/good 1960's (0.8/9.3ma)

7247=12DW7 GE branded RCA used/good 1960's (0.8/9.3ma)

$ 29.99
(!!) 7247=12DW7 GE branded Tungsol tall gray ribbed plates used/good 1960 era (1.0ma and 7.8ma)

(!!) 7247=12DW7 GE branded Tungsol tall gray ribbed plates used/good 1960 era (1.0ma and 7.8ma)

$ 29.99
(!!!!) (SINGLE) 12AU7A GE NOS 1963 copper grid posts (8.9/10.2ma)

(!!!!) (SINGLE) 12AU7A GE NOS 1963 copper grid posts (8.9/10.2ma)

$ 29.99
(!!!!) (Best Pair #4) 6DL5=EL95 Philips Mullard UK NOS 1965 (22.0/22.8ma) 1-5% matched

(!!!!) (Best Pair #4) 6DL5=EL95 Philips Mullard UK NOS 1965 (22.0/22.8ma) 1-5% matched

$ 49.99
(!!) (Best Single) 12AU7A Tungsol tall ribbed plates NOS

(!!) (Best Single) 12AU7A Tungsol tall ribbed plates NOS "O" getter halo 1960 era (9.8/9.6ma)

$ 59.99
(!!!) (BEST PRICE) 12AU7A GE used/good 1969 - 1980 (4 for $29.99)

(!!!) (BEST PRICE) 12AU7A GE used/good 1969 - 1980 (4 for $29.99)

$ 29.99
(!!) (Single) JRC-12AU7 RCA NOS long gray plates mid-1950's

(!!) (Single) JRC-12AU7 RCA NOS long gray plates mid-1950's "D" getter (9/11.6ma)

$ 64.99
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