(!!!!!) (BEST OVERALL PAIR #2) 5U4GB RCA NOS 1966-1970 era (58-60/40 and 60-62/40)
(!!!!!) (BEST PAIR #2) 5U4G TUNGSOL NOS 1955 (57-59/40 and 55-58/40) (rare)
(!!!!!) (Best Pair) 5U4GB CBS NOS 1950's double "D" getters (59-59/40 and 58-60/40)
(!!!!!) (Best Value Single) 5U4G RCA Emerson like new 1953 (57/40 and 56/40)
(!!!!!) (Best Value) 5U4G RCA used/good "D" getter 1951 (48/40 and 52/40)
(!!!!!) (Best Value) 5U4G Zenith by Tungsol low hours/tests like new "D" getter 1950 (53/40 and 57/40)
(!!!!!) (Recommended Pair) 5U4GB HYTRON NOS 1960 "O" getter halos (56-58/40 and 57-58/40)
(!!!!!) (Recommended Pair) 5U4GB HYTRON NOS 1960 "O" getter halos (60-64/40 and 60-66/40)
(!!!!) (BEST OVERALL PAIR) 5U4GB Raytheon NOS "O" getters 1962 (59-60/40 and 59-60/40) 1% matched
(!!!!) (BEST OVERALL PAIR) 5U4GB Raytheon NOS "O" getters 1962 (61-60/40 and 61-60/40) 1% matched
(!!!!) (BEST OVERALL PAIR) 5U4GB RCA NOS 1973 (60-60/40 and 60-60/40) 1% matched
(!!!!) (BEST OVERALL QUAD) 5U4GB Raytheon NOS "O" getters 1962 1-2% matched
(!!!!) (BEST PAIR) 5U4GB Raytheon NOS "O" getters 1962 (59-62/40 and 60-62/40)
(!!!!) (BEST SINGLE) 5U4G National Union NOS 1951 (56/40 and 58/40)
(!!!!) (BEST SINGLE) 5U4G TUNGSOL NOS 1953 (56/40 and 52/40)
(!!!!) (BEST SINGLE) 5U4GB Raytheon "O" getter NOS 1962 (57/40 and 57/40) 1% diode balance
(!!!!) (Best Value Pair) 5U4GB GE NOS 1960's (58-60/40 and 60-60/40)
(!!!!) (Best Value Pair) 5U4GB RCA used/low hours like new 1974 (59-60/40 and 59-61/40)
(!!!!) (Best Value Single) 5U4G CBS used/tests like new "D" getter 1950 era (55/40 and 60/40)
(!!!!) (Best Value Single) 5U4G RCA used/tests like new "D" getter 1955 (56/40 and 56/40) 1% section balance