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(!!!!!) (Best Overall Pair) 311B Western Electric NOS 1972-1974 (32ma and 33.4ma)
(!!!) (Best Single) 403A Western Electric NOS "D" getter 1957 (8.7ma)
(!!!!) (BEST PAIR) 5842=417A Western Electric NOS 1980 (39ma and 40ma)
(!!!!) (Recommended Pair) 417A Western Electric NOS 1969 (28ma and 33ma)
(!!!!) (Recommended Pair 1970's) 417A Western Electric NOS 1973-1977 (27ma and 31.2ma)
(!!!!) (BEST PAIR) 417A Western Electric NOS 1980 (42.5ma and 44ma)
(!!!!) (Recommended Pair) 417A Western Electric NOS 1980 (32ma and 34ma)
328A Western Electric "small punch" NOS 1953 (5.5ma)
6AS6=409A Western Electric NOS 1955 (4.8ma)
(!!!!) (1 Pair) 408A Western Electric "D" getter NOS 1956-1961 (72/60 and 72/60)
(!!) (1 Pair) 408A Western Electric NOS 1971-1974 (70/60 and 71/60)
(!!!!) (Best Raytheon Pair) JAN-5755 Raytheon Black Plates NOS 1979 (1.7/1.8ma and 1.9/1.7ma)
(!!!!) (Best Pair #2) JAN-5755 Raytheon Black Plates NOS 1973 (1.6/1.7ma and 1.7/1.8ma) (High Gm)
(!!!!) (Best Overall Pair) JAN-5755 Raytheon Black Plates NOS 1973-1979 (1.9/2.0ma and 1.9/1.9ma) (Highest mA and Gm) 1-2% matched
(!!!!) (Recommended Pair) JAN-5755 Raytheon Black Plates NOS 1971-1979 (1.5/1.7ma and 1.5/1.8ma)
(!) (Display Tube) 101F Western Electric Tennis Ball engraved base 1930 era (no emission/filament lights) (DISPLAY TUBE)
(!!!) (Recommended Pair) 407A Western Electric NOS "O" getter 1978 (35-43/26 and 37-43/26)
(!!!) (Best Pair #3) 407A Western Electric NOS "O" getter 1972-1983 (40-40/26 and 42-43/26)
(!!!) (Recommended Pair) 407A Western Electric used/good 1963-1964 (35-38/26 and 36-38/26)
407A Western Electric used/good 1959 (32/26 and 34/26)
