(!!!!) (BEST PAIR) 408A Western Electric NOS 1953 and 1958 (97/60 and 96/60)
(!!!!) (1 Pair) 408A Western Electric "D" getter NOS 1960-1963 (79/60 and 80/60)
(!!!) (Best Single) JW-6028=408A Western Electric "D" getter NOS 1954 (105/60)
(1 PAIR) 408A Western Electric used/good 1964 (79/60 and 78/60)
(1 PAIR) 408A Western Electric used/good 1964-1969 (76/60 and 74/60)
(1 PAIR) NE-408A Northern Electric Canada NOS 1972-1974 (83/60 and 85/60)
(!!!!) (BEST PAIR) 408A Western Electric NOS 1959 and 1968 (95/60 and 95/60)
(!!!!) (BEST PAIR) 408A Western Electric NOS 1976 and 1984 (91/60 and 91/60)
(!!!!) (BEST PAIR) 408A Western Electric NOS 1976 and 1982 (86/60 and 88/60)
(!!!!) (BEST PAIR) 408A Western Electric NOS 1965 and 1967 (91/60 and 90/60)
(!!!!) (BEST PAIR) 408A Western Electric NOS 1971 "D" getter and 1976 "O" getter (98/60 and 101/60) (highest testing pair)
(!!!!) (Recommended PAIR) 408A Western Electric NOS 1962 and 1967 (85/60 and 88/60)
(1 PAIR) 408A Western Electric used/tests like new 1965-1966 (91/60 and 97/60)
(!!!!) (GOOD VALUE PAIR) 408A Western Electric NOS 1972 and 1976 (78/60 and 80/60)
(1 PAIR) 408A Western Electric used/good 1977-1980 (82/60 and 82/60)
