(!!!!!) (Best Value Pair) 6SN7GTB GE NOS 1955-1964 same build (6.1/6.5ma and 6.0/6.3ma)
(!!!!) (Best 8 pin octal socket ever made) 8 pin EF-Johnson USA Ceramic Chassis Sockets NOS "factory sealed" 1966 and 1968 (EF part #122-228-200) (15 in stock)
(!!!!) (Best Single) 6SN7GTB RCA NOS 1958 side getter (9.6/9.8ma)
(!!!!) (Best Single) 6SN7GTB RCA NOS 1960 (10/11ma) (Highest Gm)
(!!!!) (Best Value Pair) 6SN7GTB GE NOS 1970 era (7.1/6.8ma and 7.2/7.2ma) (Schiit Freya)
(!!!!) (Best Value Pair) 6SN7GTB GE Western Union NOS 1966-1968 (7.0/7.2ma and 7.2/7.8ma) (Schiit Freya, Rogue)
(!!!!) (Good Value Pair) 6SN7GTB GE NOS and like new 1960-1964 (7.0/7.8ma and 7.0/6.8ma)
(!!!!) (Good Value Single) 6SN7GTA GE "U" getter halo used/good 1954 (6.0/6.4ma)
(!!!!) (Recommended Pair) 6SN7GTB GE NOS 1959 (6.6/7.4ma and 6.3/7.0ma) (smooth) (Schiit Freya, Rogue)
(!!!!) (Recommended Pair) 6SN7GTB GE NOS 1973-1977 (12/12.2ma and 11/10ma) (Highest mA and Gm) (Schiit Freya, Rogue)
(!!!) (Best Value Pair) 6SN7GTB GE low hours/like new 1955-1958 (8.2/9.0ma and 7.6/8.2ma) (Schiit, Ayon, Rogue) (close Gm)
(!!!) (Good Value Single) 6SN7GTB Tungsol tall bottle used/good 1960 era (7.5/7.5ma) 1% section balance
(!!!) (Recommended Single) 6SN7GTB Sylvania chrome top gray plates low hours 1950's (8.6ma/8.4ma)
(!!!) (Recommended Single) 6SN7GTB Sylvania NOS 1960's (7.2ma and 6.6ma)
(!!!) (Recommended Single) 6SN7GTB Sylvania used/tests like new 1960's (8.2ma and 7.6ma)
(!!!) 6SN7GTB Westinghouse black plates copper grid posts "D" getter 1950's (7.2/8.4ma)
(!!) (Best CBS Single) 6SN7GTB CBS black plates side-getter NOS, the same shape as Sylvania 6SN7GTB 1959 (8.0/8.2ma)
(!!) (Best Value Single) 6SN7GT RCA used/very good 1954 (7.0/8.5ma)
(!!) (Best Value Single) 6SN7GTB RCA branded Bendix Television low hours/like new 1955 side getter (7.2/7.4ma) (Gm like new)
(!!) (Best Value Single) 6SN7GTB RCA used/good 1950's (7.0/7.6ma) (Gm the same)