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3DG4 RCA NOS original boxes (2 in stock) (full-wave rectifier)
3DG4 RCA NOS slightly tilted glass (82/60 and 82/60)
412A Western Electric NOS 1981 (54/40 and 54/40)
50X6 US Brands NOS (11 in stock)
50Y7GT Sylvania NOS (100/60 and 101/60)
5726=6AL5 Sylvania and GE JAN NOS (200 in stock)
5AS4A GE branded Tungsol "D" getter halo 1960 era (63/40 and 68/40)
5AS4A Tungsol black plates NOS "D" getter halo 1950's (56/40 and 58/40)
5AS4A Westinghouse "D" getter halo 1960-1965 (58/40 and 58/50)
5AU4=5V3 Sylvania NOS 1960's (49/40 and 50/40)
5BC3 Sylvania branded GE NOS (1 in stock)
5BC3A RCA NOS (0 in stock)
5DJ4 GE NOS 1961 (50/40 and 50/40)
5DJ4 RCA like new 1960's (56/40 and 58/40)
5R4GA GE NOS 1977 (50/40 and 52/40)
5T4 GE NOS 1945 (57/40 and 65/40)
5T4 Raytheon NOS 1950's
5U4G RCA used/good 1953 a few oxide flakes inside tube (50/40 and 52/40)
5U4GB Channel Master Japan 1960 double "D" getter halos low hours/tests like new (65/40 and 68/40)
5U4GB Tungsol used/good 1960 (51/40 and 60/40)
