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(!!!!!) (Best Overall Pair) JAN-6384 Tungsol low hours/test like new 1967-1972 (68.5ma and 66ma)
(!!!!!) (Best Single #2) 6SN7GTB Tungsol TALL bottle NOS "O" getter 1960 era (7.6/7.6ma)
(!!!!!) (Best Single) 45 Raytheon NOS 1940's (38ma) (Highest Ma and Gm)
(!!!!!) (Best Single) 6SN7GTB Tungsol TALL bottle NOS "U" getter 1957 (8.8/9.0ma)
(!!!!!) (Single) 45 RCA/Cunningham engraved base used/65-70% (19ma)
(!!!!) (Best Overall Pair) 5U4GB RCA NOS 1975 same date codes (61-60/40 and 60-60/40) 1-2% matched (Best Sound)
(!!!!) (Best Pair #1) 5881 Tungsol used/good 1960's (63.2ma and 66ma)
(!!!!) (Best Pair #3) 5881 Tungsol branded RCA used/good 1963 (60ma and 62ma)
(!!!!) (BEST PAIR) 6BL7GTA GE branded RCA/Raytheon"D" getter halo NOS 1950's (37.0/38.2ma and 35.5/42.2ma) (close Gm matching)
(!!!!) (BEST PAIR) 6BL7GTA GE branded Tungsol "D" getter halo NOS 1950's (36.6/37ma and 39/37ma) (close Gm matching)
(!!!!) (Best Single #1) 5881 Tungsol branded CBS NOS 1961 (88ma)
(!!!!) (Best Single) 6550 Tungsol branded RCA NOS vented plate NOS 1965 (130ma) (Recommended for Audio Research Ref power supply)
(!!!!) (Best Single) JAN-5998 Tungsol NOS black plates NOS 1966 same build as 421A Western Electric (87ma/73ma)
(!!!!) (BEST SINGLE) JAN-CHY-5U4G CBS NOS 1957 (58/40 and 60/40)
(!!!!) (Best Tungsol Pair 1959) 12AU7A Tungsol ribbed plates NOS "U" getter halo 1959 (8.5/8.8ma and 8.8/7.8ma)
(!!!!) (Best Tungsol Single) 6V6GT Tungsol gray plate/coated glass NOS 1945 era - some surface oxidation on metal can (45.5ma)
(!!!!) (BEST VALUE SINGLE) 5U4G TUNGSOL NOS 1952 slightly tilted glass (52/40 and 52/40)
(!!!!) (Good Value Pair) 6X4 SER = LM Ericsson Sweden "D" getter NOS 1950's 1-2% matched - slightly faded top getters (54-55/40 x 2 tubes)
(!!!!) (PAIR) 5V4GA RCA NOS gray plates 1967-1971 slightly tilted glass (60-60/40 and 59-59/40)
(!!!!) (Single) 12AY7 GE branded Raytheon black box plates "D" getter 1953 era in white box (3.3/3.1ma) (Same Gm)
