(!!!) (Best Pair) CK-5755=420A Raytheon clear top NOS 1965 (1.9/2.1ma and 2.1/2.1ma)
(!!!) (Best Single) 311B Western Electric NOS 1956 (31.6ma)
(!!!) (Best Single) 403A Western Electric NOS "D" getter 1957 (8.7ma)
(!!!) (Best Single) JW-6028=408A Western Electric "D" getter NOS 1954 (105/60)
(!!!) (PAIR) VT-25-A Sylvania NOS and like new 1940's (34ma and 38.2ma)
(!!!) (Recommended Pair) 311B Amperex made in Russia NOS 1977 (37.2ma and 38.5ma) (Highest mA and Gm)
(!!!) (Recommended Pair) 311B WE used/good 1960-1961 partially faded getters (24.5ma and 26.5ma)
(!!!) (Recommended PAIR) 314A Western Electric Engraved base NOS 1930's (58-65/40 and 60-65/40)
(!!!) (Recommended PAIR) 314A Western Electric Engraved base NOS 1930's (58/40 and 64/40 x 2 tubes)
(!!!) (Recommended Pair) 407A Western Electric NOS "D" getter 1962-1970 (36-39/26 and 34-38/26)
(!!!) (Recommended Pair) 407A Western Electric NOS "O" getter 1972-1983 (40-40/26 and 42-43/26)
(!!!) (Recommended Pair) 407A Western Electric NOS "O" getter 1978 (35-43/26 and 37-43/26)
(!!!) (Recommended Pair) 407A Western Electric used/good 1963-1964 (35-38/26 and 36-38/26)
(!!!) (Single) 403A Western Electric NOS "D" getter 1957 (5.7ma)
(!!!) (SINGLE) JAN-329A Western Electric 1940's tests like new (30.6ma)
(!!!) (~ RECOMMENDED PAIR ~) 329A Western Electric NOS 1956 (33ma and 34ma)
(!!!) 211D=VT-4-B Western Electric nickel base used/60% mid-1920's - reboxed (61.5ma)
(!!!) 249B Western Electric Engraved Base NOS 1930's in 249C box (58/40)
(!!!) 286A Western Electric "top printing" NOS 1942-1945 (6.6ma)
(!!!) 286A Western Electric "top printing" NOS 1942-1945 (6.9ma)
