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(!!) (SINGLE) 5687 Tungsol rebranded IBM bronze plates

(!!) (SINGLE) 5687 Tungsol rebranded IBM bronze plates "U" getter used/very good late 1950's (32.5/39ma)

$ 34.99

1 low noise tube) 5687 Tungsol rebranded IBM bronze plates "U" getter used/very good late 1950's

1 section) 32.5ma Gm=10,200

1 section) 39.0ma Gm=11,700 

 

  

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