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257A Western Electric printed base NOS 1954

257A Western Electric printed base NOS 1954

$ 99.99
 
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1) 257A WE NOS 1954

 

(257A=231D with top cap for grid connection)

 

See more: vacuum tube
Tags: 1930's, 1950's, 231D, 257A, all, engraved base, triode, western electric, wp
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