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33 Sylvania engraved base NOS 1940 era
33 Sylvania NOS small part of getter material flaked off glass (58/36) strong output
33 United USA NOS 1940's (53/36)
337A WE "large punch" NOS 1966 slightly tilted glass (single)
338A WE "engraved base" early 1940's like new
338A Western Electric NOS (7 in stock)
338A Western Electric NOS 1956
33GT7 US Brands (4 in stock)
33GY7A NOS (4 in stock)
34 Tungsol NOS 1946
34 used/good (0 in stock)
346C Western Electric NOS 1967 reboxed
346C Western Electric NOS 1971
35 / 51 Sylvania NOS (3 in stock)
35 / 51 US Brands NOS (16 in stock)
35 / 51 used/good (4 in stock)
35 Tungsol used/tests like new 1940's (40/26)
350A Western Electric used/good 85% 1947 (78.2ma and Gm=7400)
350C Shuguang China NOS (sub for 5881 or 6L6GC) (68.5ma)
353A Western Electric NOS (15 in stock)
