12X4 GE gray plates "D" getter NOS 1960 (50/40 and 50/40)
12X4 RCA Motorola black plates "D" getter NOS 1960 era (48/40 and 49/40)
12X4 RCA NOS 1965 (45/40 and 46/40)
12X4 Silvertone Sylvania "D" getter NOS 1960 era (46/40 and 48/40)
13CW4 RCA NOS 1950's - 1970 (5 in stock)
257A Western Electric printed base NOS 1954
257A Western Electric printed base NOS 1960
2A3 Ken Rad coated glass low hours/test like new 1947 (read review)
329A Western Electric NOS 1952-1957 (1 Pair: 30ma and 30.5ma)
329A Western Electric NOS 1972 (1 Pair: 33.6ma and 35.2ma)
329A Western Electric NOS 1972 (1 PAIR: 35ma and 37ma)
329A Western Electric NOS 1976 (1 Pair: 34ma and 37ma)
4 pin (UX-4) Amphenol brown micanol chassis socket with "metal wavy washer" NOS 1950's nickel plated contacts (0 in stock)
407A Western Electric used/good 1959 (32/26 and 34/26)
407A Western Electric used/good 1962 (35/26 and 42/26)
412A Western Electric NOS 1981 (54/40 and 54/40)
50L6GT Emerson by RCA used/good 1940's (91/60)
50L6GT GE branded Westinghouse NOS 1970 era (92/60)
50L6GT GE coin base NOS 1970's (2 in stock)
50L6GT GE NOS 1949-1951 (6 in stock)