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4-125A=4D21 Eimac used sold as-is good filament
4-125A=GL-4D21 GE NOS original box 1960 sold as-is
5 pin US made ceramic chassis socket for 803 power tube (2 in stock)
50L6GT GE branded Westinghouse NOS 1970 era (92/60)
50L6GT GE NOS 1949-1951 (6 in stock)
50L6GT Ken Rad used/good 1947 (76/60)
50L6GT Raytheon NOS 1957 (84/60)
50L6GT RCA Emerson like new 1940's (91/60)
50L6GT RCA like new 1940's reboxed slightly tilted glass (98/60)
50L6GT RCA NOS 1940's (86/60)
50L6GT RCA used/good horizontal scratch on base 1970's (78/60)
50L6GT RCA Victor used/good 1950 (83/60)
50L6GT Tungsol used/good 1950's (76/60)
5558 GE NOS
5610 GE NOS around 1960
5651A Sylvania rebranded RCA NOS 1983 (1 in stock)
5687WA GE used/tests like new 1970's (44/45ma) (highest Ma and Gm)
5719 GE NOS 1953 (similar to 6AD4) (6 in stock)
5725W=6AS6 US Brands NOS (100 in stock)
5726=6AL5 Sylvania and GE JAN NOS (200 in stock)
