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(!!!) (Best Single) 5U4GB CBS NOS double "D" getters 1959 (60/40 and 63/40)
(!!!) (Best Single) 5U4GB Hytron NOS "O" getter halo 1960 era (59/40 and 60/40)
(!!!) (Best Value) 5U4GB RCA low hours/like new 1970 (55-55/40) 1% section balance
(!!!) (Recommended Single) 5U4GB RCA "D" getter NOS 1960 (56/40 and 57/40)
(!!!) (Recommended Single) 5U4GB RCA NOS 1968 (61/40 and 62/40)
(!!!) 5U4GB GE NOS 1971 (58/40 and 61/40)
(!!) 5U4GB RCA used/good "D" getter 1960 a few scratches on base (53/40 and 57/40)
(!) (SINGLE) 5U4GB RCA used/strong 1967 (56/40 and 61/40)
(READ REVIEW) 5U4GB RCA NOS 1966-1968 (60-62/40 and 61-62/40) 1-2% matched (Copy)
5U4GB Channel Master Japan 1960 double "D" getter halos low hours/tests like new (65/40 and 68/40)
5U4GB GE ITT NOS 1960's "D" getter (60/40 and 62/40)
5U4GB Hitachi Japan NOS branded Marconi 1960's a few very small vertical scratches on base (57/40 and 58/40)
5U4GB RCA BALDWIN used/good 1962 glass slightly tilted in base (53/40 and 53/40)
5U4GB RCA used/good 1950's slightly tilted glass (55/40 and 56/40)
5U4GB RCA used/good 1968 (56/40 and 57/40)
5U4GB Sylvania Canada NOS 1960's (61/40 and 64/40) (similar build to RCA)
5U4GB Sylvania used/tests like new 1960's (54/40 and 54/40)
5U4GB Tungsol used/good 1960 (51/40 and 60/40)
5Z3P Chinese (substitute is 5U4G or 5U4GB)
