(!!!!) (Tungsol Single) JAN-12AY7 Tungsol like new 1960 era (2.9/2.7ma) (same Gm)
(!!!!) 5U4G GE NOS 1952 (55/40 and 51/40)
(!!!!) 5V4GA RCA NOS 1966 (60/40 and 60/40)
(!!!!) 6336A Tungsol branded Heintz and Kaufman 1960's (62/76ma) ***
(!!!!) 6AK5 GE NOS 1973 (10.2ma)
(!!!) (2nd Best Single) 27=127 Arcturus Blue Balloon tests like new 1930 era in white box (4.5ma)
(!!!) (Best Pair) 35W4 Tungsol NOS 1960 era (54/40 x 2 tubes)
(!!!) (BEST PAIR) 5998A Sylvania JAN NOS 1980 (121/123ma and 122/126ma) (5998A=7236) 1-3% matched
(!!!) (BEST PAIR) 5998A Sylvania JAN NOS 1980 (122/127ma and 123/126ma) (5998A=7236)
(!!!) (BEST PAIR) 5998A Sylvania JAN NOS 1980 (124/126ma and 126/122ma) (5998A=7236)
(!!!) (BEST PAIR) 5998A Sylvania JAN NOS 1980 (136/132ma and 134/132ma) (5998A=7236)
(!!!) (BEST PAIR) 6A3 Tungsol coated glass NOS 1940's (64ma and 65ma)
(!!!) (Best Pair) JAN-6384 Tungsol used/test like new 1967-1972 (68.5ma and 66ma)
(!!!) (BEST PRICE) 80 US Brands used/good (5 in stock) ($9.99 each)
(!!!) (Best Single 1954) JTL-5687 Tungsol black plates "U" getter NOS 1954 (33/36.5ma)
(!!!) (Best Single 1956) 6BX7GT GE "D" getter NOS 1956 (53ma/50ma)
(!!!) (Best Single) 127 Arcturus Blue Balloon tests like new 1930 era in white box (5.6ma) (High Ma and Gm)
(!!!) (Best Single) 12AU7A Tungsol tall ribbed plates NOS "O" getter halo 1960 era (10.8/11.4ma)
(!!!) (Best Single) 12AY7 GE "GRAY BOX PLATES" and "D" getter NOS 1953 (3.3/3.1ma)
(!!!) (Best Single) 12AZ7 Tungsol black plates "D" getter halo NOS 1955 (12ma/14ma)