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407A LM Ericsson Sweden like new 1960's (41/26 and 42/26)
407A LM Ericsson Sweden used/good 1960's
407A Sylvania branded RCA gold pins used/good 1971
407A Sylvania branded RCA NOS 1977
407A Sylvania gold pins used/good 1960's
407A Western Electric like new 1968 in white box (54/26 and 64/26)
407A Western Electric NOS 1974 (32/26 and 34/26)
407A Western Electric used/good 1959 (32/26 and 34/26)
407A Western Electric used/good 1962 (35/26 and 42/26)
407A Westinghouse Canada NOS 1960's
415A Western Electric NOS 1960 (1 in stock)
415A Western Electric NOS 1970-1981 (25 in stock) (similar to 6AS6)
416B=6280 WE NOS
416C Western Electric
6AS6=409A Western Electric NOS 1955 (4.8ma)
6AS6=409A Western Electric used/tests like new 1951 (5.4ma)
CW-1344=215A Western Electric NOS original box - strong emission (1 tube) (rare)
F-52984=417A Western Electric used/good 1959 (20ma and Gm=18,100)
GB-407A Sylvania Gold Brand gold pins like new 1960's
GB-407A Sylvania Lenkurt Gold Brand gold pins used/like new 1960's
