(!!!!!) (Best Overall Pair) 336A Western Electric NOS 1956-1957 (42.0ma and 43.3ma) (Highest Ma) (matched on Amplitrex)
(!!!!!) (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) 7N7 Sylvania chrome top NOS 1956-1957 1-3% matched (8/9ma and 8.6/8.4ma) (best 6SN7 sub using adapter sockets)
(!!!!!) (Best Pair) 6SN7GT Tungsol parallel gray plates 1954 (8.7/7.5ma and 8.0/7.5ma) (very close Gm) (Cary, Rogue)
(!!!!!) (Best Single) EL34 Mullard UK XF1 NOS 1959 double "O-O" getter halos (83ma) (1st version after metal base) (very rare)
(!!!!!) (Best Value Pair) 6021 GE 5 Star Rated NOS "D" getter halo 1957 in GE 5 Star Boxes (1-3% matched) (5.0/7.2ma and 4.8/6.6ma)
(!!!!!) (Good Value Pair) 12BH7A Sylvania gray pinched plates NOS and used 1970 era (7.6/8.0.4ma and 7/7ma)
(!!!!!) (Good Value Single) 12AU7=ECC82 Mullard UK long plates "O" getter halo used/good 1958 (9.0/8.8ma)
(!!!!!) (Recommended Pair) 6350 Sylvania rebranded United black ribbed plates NOS large "U" getter halo 1955-1957 (10.5/10.9ma and 10.0/10.7ma) 1-3% matched
(!!!!!) (Recommended Pair) 6SN7GT Tungsol parallel gray plates large "O" mica ears NOS 1953 (6.4/6.6ma and 6.4/6.8ma) (rare version) (Cary, Rogue)
(!!!!!) (Recommended Single) GZ34 Pope Holland metal base NOS 1956 (57/40 and 60/40)
(!!!!) (Best 6094 Quad) JAN-CEA-6094 Bendix gold pins NOS 1957 (55/57/57/58ma)
(!!!!) (Best Overall Single) ECC81=12AT7 Philips Miniwatt France by La Radiotechnique NOS 1962 (8.8/8.8ma) 1-2% section balance
(!!!!) (Best RCA 1955) 12AX7 RCA black plates "D" getter NOS 1955 (Gm=1800/2000 and 1.2/1.5ma) (rare tube)
(!!!!) (Best Single 1960's) 5691 RCA Red Base branded GE Black Plates NOS 1960's rebranded in 1970's (2.4/2.6ma)
(!!!!) (Best Single) 12BH7A GE ribbed plates NOS 1980 (10.0/10.2ma) 1-3% section balance
(!!!!) (Best Single) 12BH7A Sylvania rebranded GE black oval plates "U" getter NOS 1956 era (11.2/14ma)
(!!!!) (Best Single) 12SN7GTA Sylvania branded GE NOS 1960's (11.0/11.4ma) (same Gm)
(!!!!) (Good Value Single) ECC83=12AX7 Amperex Bugle Boy Holland "long plates" and "D" getter used/good 1958 (1.1/1.1ma and Gm=1350/1350) 1% section balance
(!!!!) (Holland single 1958) ECC83=12AX7 Triotron Holland "long plates" with "D" getter halo like new 1957 (1.1/1.2ma and Gm=1700/1700)
