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(!!!!!) (Best Pair) EF86 Amperex Bugle Boy Holland NOS 1966 (3.3ma and 3.0ma) (close Gm)
(!!!!) (Best Holland Pair) EF86 ADZAM Holland NOS 1963-1964 (3.5ma and 3.5ma) 1-3% matched
(!!!!) (Best Pair #2) EF86 ADZAM made by Valvo Germany NOS 1970 (3.1ma and 2.9ma) 1-5% matched
(!!!!) (Best Pair) 8D8=EF86 Brimar UK quad mica NOS 1961 (2.9ma and 3.0ma) 1-2% matched
(!!!!) (Pair) 8D8=EF86 Brimar UK quad mica NOS 1961 (2.7ma and 2.6ma) 1-2% matched
(!!!) (Best Single) EZ80=6V4 Telefunken Germany <> bottom NOS 1969 (60/40 and 62/40) (rare)
(!!!) (Best Value Single) 8D8=EF86 Brimar UK quad mica NOS/75% 1961 (2.0ma)
(!!!) (Best Value) EZ80=6V4 Tronal by Tesla NOS 1970's (62/40 and 62/40) 1% section balance
(!!!) (Good Value Single) ECC81=12AT7 Mullard old logo made in Hyperlec Brive France used/good (8.4/9.8ma)
(!!!) (Recommended Single) EZ80 Pope France NOS "O" getter halo 1970 (62/40 and 62/40) 1% section balance
(!!!) (Recommended Single) EZ80 RSD Hungary NOS 1960's (60/40 and 60/40) 1% section balance
(!!!) (Recommended Single) EZ80=6V4 Philips La Radiotechnique Chartres plant France NOS "O" getter halo 1961 (66-66/40) 1% section balance
(!!!) (Recommended Single) EZ80=6V4 Philips Miniwatt La Radiotechnique Chartres plant France NOS "O" getter halo 1963 (61-62/40)
(!!!) (single) ECC81=12AT7 Philips Miniwatt by Mullard UK like new "o" getter 1957 (8.2/7.6ma) (Mitcham plant)
(!!!) (slightly microphonic) ECC81=12AT7 Miniwatt by Mullard NOS 1970 (9.6/10.6ma)
(!!) (#1 12AT7 France) 12AT7 Philips Miniwatt France NOS 1964 in white box (7.4/7.8ma)
(!!) (Best Pair #2) ECC40 Philips NOS made by La Radiotechnique, Chartres/France 1969 (7.1/6.3ma and 7.2/6.1ma)
(!!) (Best Pair) ECC40 Philips Import NOS made by La Radiotechnique, Chartres/France 1960 (6.0/6.2ma and 6.1/6.4ma) (Same Gm) 1-2% matched
(!!) (Best Pair) ECC40 Philips NOS made by La Radiotechnique, Chartres/France 1969 (6.5/6.5ma and 6.8/6.7ma) 1-3% matched
(!!) (Best Pair) ECC40 Philips NOS made by La Radiotechnique, Chartres/France 1969 (6.8/6.3ma and 6.8/6.4ma) 1-3% matched
