(!!!!!) (Best Pair 1961) E80CF=7643 Valvo branded Amperex Germany PQ NOS 1961 (10.2/10.8ma and 10.4/10ma) (PREMIUM 6BL8 SUB) (Tuners)
(!!!!) (Best Value Pair) E80CF=7643 Valvo branded Amperex Germany PQ NOS 1966 (12.2/12.6ma and 8.5/8.5ma) (6BL8 SUB)
(!!!) (Best Single) E80CF=7643 Valvo branded Amperex Germany PQ NOS 1961 (Premium 6BL8 SUB) (Highest mA and Gm)
(!!!) (Best Value Pair) E80CF=7643 Valvo Germany branded International NOS 1961-1963 (PREMIUM 6BL8 SUB) (Tuners) 1-5% matched
(!!!) (Best Value Pair) E80CF=7643 Valvo Germany branded International NOS 1962-1963 (PREMIUM 6BL8 SUB) (Tuners) 1-5% matched
