(!!!!) (Recommended Pair) 417A Western Electric NOS 1969 (28ma and 33ma)
$ 299.99
1 matched pair) 417A Western Electric "D" getter NOS 1966-1969
1 tube) 28ma and Gm=25,800
1 tube) 33ma and Gm=28,600
Matched on Amplitrex
Good used Ma range NOS 17-20ma
Good used Gm range NOS 18,000 - 22,000
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