(!) (Pair) 417A Western Electric used/good 1977 (12.2ma and 14ma) Title: 417A

1 pair) 417A Western Electric used/good 1977

1 tube) 12.2ma Gm=16,000 (7713=1977)

1 tube) 14.0ma Gm=15,200 (7752=1977)

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