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Preamp tubes

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(READ REVIEW) ECF80=6BL8 Telefunken Germany <> bottom NOS 1971 (11.5/9.6ma and 12.2/9.5ma) (best sound)

(READ REVIEW) ECF80=6BL8 Telefunken Germany <> bottom NOS 1971 (11.5/9.6ma and 12.2/9.5ma) (best sound)

$ 0.00
(!!!) (Best Mullard Single) ECF80=6BL8 IEC Mullard UK NOS 1966 (16ma/12ma) (Highest mA and Gm)

(!!!) (Best Mullard Single) ECF80=6BL8 IEC Mullard UK NOS 1966 (16ma/12ma) (Highest mA and Gm)

$ 42.99
(!!!) (Best Single) E80CF=7643 Valvo branded Amperex Germany PQ NOS 1961 (Premium 6BL8 SUB) (Highest mA and Gm)

(!!!) (Best Single) E80CF=7643 Valvo branded Amperex Germany PQ NOS 1961 (Premium 6BL8 SUB) (Highest mA and Gm)

$ 54.99
(!!) (Good Value Single) ECF80 VALVO FRANCE (La Radiotechnique) NOS 1962

(!!) (Good Value Single) ECF80 VALVO FRANCE (La Radiotechnique) NOS 1962

$ 34.99
(!) E80CF Valvo Germany rebranded Philips Miniwatt SQ

(!) E80CF Valvo Germany rebranded Philips Miniwatt SQ "PINCHED WAIST" NOS 1961 (6BL8 substitute)

$ 49.99
(!) E80CF Valvo Germany rebranded Philips Miniwatt SQ

(!) E80CF Valvo Germany rebranded Philips Miniwatt SQ "PINCHED WAIST" NOS 1962 (6BL8 substitute)

$ 49.99
7643 Valvo branded Amperex PQ Germany

7643 Valvo branded Amperex PQ Germany "PINCHED WAIST" NOS 1960 (6BL8 sub)

$ 49.99
(!!!) (Best Value Single) E80CF=7643 Valvo Germany branded International NOS 1961 (12.8/18mA) (PREMIUM 6BL8 SUB) (Tuners)

(!!!) (Best Value Single) E80CF=7643 Valvo Germany branded International NOS 1961 (12.8/18mA) (PREMIUM 6BL8 SUB) (Tuners)

$ 39.99
(!!!) (Best Value Single) E80CF=7643 Valvo Germany branded International NOS 1963 (10.8/13.4mA) (PREMIUM 6BL8 SUB) (Tuners)

(!!!) (Best Value Single) E80CF=7643 Valvo Germany branded International NOS 1963 (10.8/13.4mA) (PREMIUM 6BL8 SUB) (Tuners)

$ 37.99
E80CF=7643 Philips Miniwatt SQ Germany

E80CF=7643 Philips Miniwatt SQ Germany "PINCHED WAIST" used/good 1961 (11.4/10.4mA) (6BL8 sub)

$ 39.99
(!!!!!) (Recommended Pair) E80CF=7643 Valvo branded Philips Miniwatt SQ NOS 1963 (PREMIUM 6BL8 SUB) (Tuners)

(!!!!!) (Recommended Pair) E80CF=7643 Valvo branded Philips Miniwatt SQ NOS 1963 (PREMIUM 6BL8 SUB) (Tuners)

$ 89.99
(!) (Good Value Single) ECF80=6BL8 Telefunken Germany <> bottom used/good 1964 (10.0/10.2ma)

(!) (Good Value Single) ECF80=6BL8 Telefunken Germany <> bottom used/good 1964 (10.0/10.2ma)

$ 24.99
(!) (Good Value Single) ECF80=6BL8 Telefunken Germany <> bottom like new 1971 (11.6/9.6ma)

(!) (Good Value Single) ECF80=6BL8 Telefunken Germany <> bottom like new 1971 (11.6/9.6ma)

$ 34.99
(!!!) (Single) ECF80=6BL8 Telefunken Germany <> bottom NOS 1962 (11/7ma)

(!!!) (Single) ECF80=6BL8 Telefunken Germany <> bottom NOS 1962 (11/7ma)

$ 49.99
(!!!) (Best Holland Single) ECF80=6BL8 Amperex Bugle Boy Holland NOS 1957 (14ma/11ma)

(!!!) (Best Holland Single) ECF80=6BL8 Amperex Bugle Boy Holland NOS 1957 (14ma/11ma)

$ 44.99
E80CF=7643 Valvo Germany branded Philips 1970 (11.4/9.0ma)

E80CF=7643 Valvo Germany branded Philips 1970 (11.4/9.0ma)

$ 37.99
(!!!!!) (Best Pair #2) ECF80=6BL8 Telefunken Germany <> bottom NOS 1960-1963 (13.6/7.5ma and 12.4/8ma) (best sound)

(!!!!!) (Best Pair #2) ECF80=6BL8 Telefunken Germany <> bottom NOS 1960-1963 (13.6/7.5ma and 12.4/8ma) (best sound)

$ 129.99
(!!!!!) (Best Overall Single #1) ECF80=6BL8 Telefunken Germany NOS 1971 (14.0/11.5ma) (Highest mA and Gm)

(!!!!!) (Best Overall Single #1) ECF80=6BL8 Telefunken Germany NOS 1971 (14.0/11.5ma) (Highest mA and Gm)

$ 69.99
(!) (Single) ECF80=6BL8 Telefunken Germany <> bottom NOS 1971 (14/9ma)

(!) (Single) ECF80=6BL8 Telefunken Germany <> bottom NOS 1971 (14/9ma)

$ 59.99
(!!) (SINGLE) E80CF=7643 Telefunken Germany <> bottom NOS Gold Pins with warranty sheet 1965 (13.0/11.4ma) (6BL8 sub)

(!!) (SINGLE) E80CF=7643 Telefunken Germany <> bottom NOS Gold Pins with warranty sheet 1965 (13.0/11.4ma) (6BL8 sub)

$ 79.99
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