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(!!!!!) (Best Pair #1) 12AU7=ECC82 Mullard UK ribbed plates NOS 1974 same date codes (9.2/9.1ma and 9.2/10.2ma) (Rogue, Hovland, Audio Note, Prima Luna) (Same Gm)

(!!!!!) (Best Pair #1) 12AU7=ECC82 Mullard UK ribbed plates NOS 1974 same date codes (9.2/9.1ma and 9.2/10.2ma) (Rogue, Hovland, Audio Note, Prima Luna) (Same Gm)

$ 329.99
(!!!!!) (Best Pair #3) 12AU7=ECC82 Mullard UK ribbed plates NOS 1961-1964 (10/9.6ma and 10.8/10ma) (Rogue, Hovland, Audio Note, Prima Luna) (Close Gm)

(!!!!!) (Best Pair #3) 12AU7=ECC82 Mullard UK ribbed plates NOS 1961-1964 (10/9.6ma and 10.8/10ma) (Rogue, Hovland, Audio Note, Prima Luna) (Close Gm)

$ 309.99
(!!!!!) (Best Pair #3) 12AU7=ECC82 Mullard UK ribbed plates NOS 1972-1976 (10.2/12.8ma and 11.2/12ma) (Rogue, Hovland, Audio Note, Prima Luna) (Close Gm)

(!!!!!) (Best Pair #3) 12AU7=ECC82 Mullard UK ribbed plates NOS 1972-1976 (10.2/12.8ma and 11.2/12ma) (Rogue, Hovland, Audio Note, Prima Luna) (Close Gm)

$ 309.99
(!!!!!) (Best Single #1) 12AU7 Mullard UK

(!!!!!) (Best Single #1) 12AU7 Mullard UK "long plates" and "O" getter 1958 NOS (10.2ma and 10.6ma) (Same Gm)

$ 298.88
(!!!!!) (Holland Single) 12AU7 Pope Holland NOS 1971 dimpled disc halo (12/13.4ma)

(!!!!!) (Holland Single) 12AU7 Pope Holland NOS 1971 dimpled disc halo (12/13.4ma)

$ 129.99
(!!!!!) (Nice Single) ECC82=12AU7 Telefunken Germany <> bottom ribbed plates used/good 1957 (8.5/8.2ma) (strong Gm)

(!!!!!) (Nice Single) ECC82=12AU7 Telefunken Germany <> bottom ribbed plates used/good 1957 (8.5/8.2ma) (strong Gm)

$ 99.99
(!!!!) (BEST OVERALL SINGLE) 12AU7A GE NOS 1958 copper grid posts (11.8/11.4ma) 1-3% section balance

(!!!!) (BEST OVERALL SINGLE) 12AU7A GE NOS 1958 copper grid posts (11.8/11.4ma) 1-3% section balance

$ 39.99
(!!!!) (Best Pair #1) ECC802S=12AU7 Telefunken Germany <> bottom NOS 1964-1967 1-2% matched (10.4/1.6ma and 10.2/10.4ma) (same Gm) (best sound)

(!!!!) (Best Pair #1) ECC802S=12AU7 Telefunken Germany <> bottom NOS 1964-1967 1-2% matched (10.4/1.6ma and 10.2/10.4ma) (same Gm) (best sound)

$ 1,598.88
(!!!!) (Best Pair #2) CV4003=12AU7=6189 Mullard UK NOS 1978 rebranded

(!!!!) (Best Pair #2) CV4003=12AU7=6189 Mullard UK NOS 1978 rebranded "6189 RTC" 1981 (8.4/8.8ma and 8.4/9.0ma) 1-2% matched (same Gm)

$ 239.99
(!!!!) (Best Pair #2) CV4003=12AU7=6189 Mullard UK NOS 1978 rebranded

(!!!!) (Best Pair #2) CV4003=12AU7=6189 Mullard UK NOS 1978 rebranded "6189 RTC" 1981 (8.6/8.8ma and 8.8/9.2ma) 1-3% matched

$ 239.99
(!!!!) (Best Single #1) ECC802S=12AU7 Telefunken Germany <> bottom NOS 1960 good printing (11.0ma and 10.6ma) (Same Gm)

(!!!!) (Best Single #1) ECC802S=12AU7 Telefunken Germany <> bottom NOS 1960 good printing (11.0ma and 10.6ma) (Same Gm)

$ 798.88
(!!!!) (Best Single #1) ECC802S=12AU7 Telefunken Germany <> bottom NOS 1964 good printing (11.0ma and 11.7ma)

(!!!!) (Best Single #1) ECC802S=12AU7 Telefunken Germany <> bottom NOS 1964 good printing (11.0ma and 11.7ma)

$ 798.88
(!!!!) (Best Single #2) 12AU7=ECC82 Mullard UK shield logo NOS 1965 (11.2/12.6ma) (smooth rich sound)

(!!!!) (Best Single #2) 12AU7=ECC82 Mullard UK shield logo NOS 1965 (11.2/12.6ma) (smooth rich sound)

$ 144.44
(!!!!) (Best Single #2) ECC802S=12AU7 Telefunken Germany <> bottom NOS 1960 good printing (10.4ma and 11.0ma) (close Gm) (oldest single)

(!!!!) (Best Single #2) ECC802S=12AU7 Telefunken Germany <> bottom NOS 1960 good printing (10.4ma and 11.0ma) (close Gm) (oldest single)

$ 788.88
(!!!!) (Best Single #3) CV4003=12AU7=6189 Mullard UK NOS 1978 rebranded

(!!!!) (Best Single #3) CV4003=12AU7=6189 Mullard UK NOS 1978 rebranded "6189 RTC" 1981 (12.0/10.2ma)

$ 124.99
(!!!!) (Best Single #4) ECC802S=12AU7 Telefunken Germany <> bottom NOS 1963 good printing (9.4ma and 10.7ma)

(!!!!) (Best Single #4) ECC802S=12AU7 Telefunken Germany <> bottom NOS 1963 good printing (9.4ma and 10.7ma)

$ 748.88
(!!!!) (Best Single 1956) ECC82=12AU7 Siemens Halske

(!!!!) (Best Single 1956) ECC82=12AU7 Siemens Halske "Long Ribbed Plates" and large/wide "U" getter branded Haltron 1956 (10/9.2ma) (k62 series) (High Gm) (rare)

$ 299.99
(!!!!) (Best Single 1969) ECC82=12AU7 Philips Holland NOS 1969 (11.2/11.7ma) 1-3% section balance

(!!!!) (Best Single 1969) ECC82=12AU7 Philips Holland NOS 1969 (11.2/11.7ma) 1-3% section balance

$ 139.99
(!!!!) (BEST SINGLE 1985) 12AU7A GE NOS 1985 copper grid posts (9.2/9.4ma) 1-2% section balance

(!!!!) (BEST SINGLE 1985) 12AU7A GE NOS 1985 copper grid posts (9.2/9.4ma) 1-2% section balance

$ 29.99
(!!!!) (Best Single) ECC82=12AU7 Philips Holland NOS 1972 (12/12ma) 1-2% section balance

(!!!!) (Best Single) ECC82=12AU7 Philips Holland NOS 1972 (12/12ma) 1-2% section balance

$ 139.99
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