(!!!!!) (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 Pair) 6SN7GT Tungsol parallel gray plates 1954 (8.7/7.5ma and 8.0/7.5ma) (very close Gm) (Cary, Rogue)
(!!!!!) (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)
(!!!!) (Best Single) 6SN7GTA Sylvania Philco "Chrome Top" short bottle NOS 1954 (7.8/8.0ma) 1-3% section balance
(!!!) (Best Single) 6SN7GT Tungsol parallel black plates chrome top NOS 1952-1953 (11.4/11.2ma)
(!!!) (Best Single) 6SN7GT Tungsol parallel gray plates NOS 1953 (10.4/9.6ma)
(!!!) (Best Single) 6SN7GT Tungsol parallel gray plates NOS 1953 burgundy base large "O" mica (9/10ma)
(!!!) (Best Single) 6SN7GT Tungsol parallel gray plates NOS 1953 large "O" mica (10.4/9.2ma)
(!!!) (Best Value Single) 6SN7GT Tungsol parallel gray plates NOS 1953 large "O" mica (7.0/7.2ma)
(!!!) (Good Value Single) 6SN7GTB Tungsol tall bottle used/good 1960 era (7.5/7.5ma) 1% section balance
(!!) 6SN7GTB Sylvania used/75% 1960's (6.0/6.4ma)
(!!) 6SN7GTB Tungsol black plates tall bottle "U" getter used/good 1950's (9.2/8.2ma)
(!) JAN-CLRV-6SN7WGTA GE Canada brown base NOS 1970 (7/10ma)
