5AS4A GE branded Tungsol "D" getter halo 1960 era (63/40 and 68/40)
5AS4A GE branded Tungsol gray plates D getter NOS 1960 era (60/40 and 60/40)
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)
5BC3 Sylvania branded GE NOS (1 in stock)
5BC3A RCA NOS (0 in stock)
5M-K9 NEC Japan NOS (58/40) (sold out)
5M-K9 Toshiba Japan NOS (0 in stock)
5U4GB Tungsol used/good 1960 (51/40 and 60/40)
5X4G Cunningham NOS 1946 (51/40 and 52/40)
5X4G RCA NOS 1960 (54/40 and 55/40)
5Z3G Ken Rad small "D" getter NOS 1945 era (51/40 and 51/40)
5Z3G Ken Rad wide "D" getter NOS 1945 era (52/40 and 54/40)
5Z3G RCA used/good 1956 (46/40 and 48/40)
5Z3G TRIAD by RCA used/tests like new 1940's (52/40 and 52/40)
5Z3G Tungsol NOS 1940's (51/40 and 53/40)
5Z3P Chinese (substitute is 5U4G or 5U4GB)
5Z4P Chinese (Best sub is 5Z4G or GZ30)
6BE3=6BZ3 NOS (16 in stock)
6BL4 RCA NOS 1950's
