(!!!!!) (2nd Best Pair) ECC33=6SN7GT Mullard UK black plates NOS pan shape getter halo 1950-1955 era (10.2/8.6ma and 9.5/8.6ma) (best sounding ECC33 of all-time)
(!!!!!) (3rd Best Pair) ECC33=6SN7GT Mullard UK black plates NOS pan shape getter halo 1950-1955 era (8.6/9.6ma and 8/10ma) (best sounding ECC33 of all-time)
(!!!!!) (Best Overall Pair) 6J5GT Ken Rad black ribbed plates NOS 1942 (10.6ma and 10.3ma) 1-3% matched
(!!!!!) (Best Overall Pair) 6SN7GT Tungsol parallel gray plates large O mica NOS 1952-1953, 1 tube has crack in base (8.8/8.2ma and 8.8/8.2ma) 1-2% matched (Cary, Rogue)
(!!!!!) (Best Overall Pair) ECC33=6SN7GT Mullard UK black plates NOS pan shape getter halo 1950-1955 era (9.4/8.6ma and 9.4/8.4ma) 1-2% matched (best sounding ECC33 of all-time)
(!!!!!) (Best Overall Single) ECC82=12AU7 Telefunken Diamond Bottom <> smooth plates NOS 1965 (10.2/10.2ma) 1-2% section balance
(!!!!!) (Best Overall Single) ECC82=12AU7 Telefunken Diamond Bottom <> smooth plates NOS 1970 (14.4/14.2ma) (Highest mA and Gm)
(!!!!!) (Best Pair) 6SN7GT Tungsol parallel gray plates 1954 (8.7/7.5ma and 8.0/7.5ma) (very close Gm) (Cary, Rogue)
(!!!!!) (Best Quad #1) 6J5GT Sylvania lightning logo NOS 1945-1946 (8.0/8.0/8.0/8.2ma)
(!!!!!) (Best Quad #3) 6J5GT Sylvania lightning logo NOS 1945-1946 (7.2/7.3/7.3/7.4ma)
(!!!!!) (Best Quad #4) 6J5GT Sylvania lightning logo NOS 1945-1946 (6.8/7.0/7.0/7.0ma)
(!!!!!) (Best Single) 6DJ8=ECC88 Philips Miniwatt Holland "O" getter 1965 (21/23ma) (Highest mA and Gm)
(!!!!!) (Best Tungsol Pair) 5881 Tungsol 1960-1967 like new and used - same build (66.2ma and 66.5ma)
(!!!!!) (Best Value Pair) 6SN7GTB Sylvania "chrome top" NOS and like new 1956 (8.1/8.6ma and 7.8/8.6ma) (strong Gm)
(!!!!!) (Best Value Single) 5U4G RCA Emerson like new 1953 (57/40 and 56/40)
(!!!!!) (Best Value Single) CV378=GZ37 Mullard "D" getter NOS 1955 one plate is discolored (57/40 and 57/40) (1st version made with skinny bottle)
(!!!!!) (Best Value) 5U4G RCA used/good "D" getter 1951 (48/40 and 52/40)
(!!!!!) (Best Value) 5U4G Zenith by Tungsol low hours/tests like new "D" getter 1950 (53/40 and 57/40)
(!!!!!) (Good Value Pair) 12BH7A Sylvania gray pinched plates NOS and used 1970 era (7.6/8.0.4ma and 7/7ma)
(!!!!!) (Good Value Pair) 6350 Sylvania rebranded United black ribbed plates NOS large "U" getter halo 1950's (9.6/9.8ma and 9.2/9.8ma) (Emille Labs Cha'am)
