(!!!!!) (Best Overall Pair) E80CF=7643 Valvo branded Amperex Germany PQ NOS 1961 1-2% (PREMIUM 6BL8 SUB) (Tuners)
(!!!!!) (Best Overall Pair) E80CF=7643 Valvo branded Amperex Germany PQ NOS 1961 1-2% (PREMIUM 6BL8 SUB) (Tuners) (Highest Ma and Gm)
(!!!!!) (Recommended Pair) E80CF=7643 Valvo branded Amperex Germany PQ NOS 1961 1-2% (PREMIUM 6BL8 SUB) (Tuners)
(!!!!) (Recommended Pair) E80CF=7643 Valvo branded Amperex Germany PQ NOS 1966 1-2% matched (Best 6BL8 sub)
(!!!!) (Recommended Pair) E80CF=7643 Valvo branded Amperex Germany PQ NOS 1966 1-5% matched (Best 6BL8 sub)
(!!!) (Best Single) E80CF=7643 Valvo branded Amperex Germany PQ NOS 1961 (Premium 6BL8 SUB) (Highest mA and Gm)
(!) E80CF Valvo Germany rebranded Philips Miniwatt SQ "PINCHED WAIST" NOS 1961 (6BL8 substitute)
(!) E80CF Valvo Germany rebranded Philips Miniwatt SQ "PINCHED WAIST" NOS 1962 (6BL8 substitute)
7643 Valvo branded Amperex PQ Germany "PINCHED WAIST" NOS 1960 (6BL8 sub)
E80CF Telefunken Germany <> bottom NOS Gold Pins rebranded Siemens 1970-1971 (6BL8 sub)
