5 Vintage United 6687/E91H Logic Switching Heptode Tube - BangyBang Tubes

Brand

United

Model

6687

Type                                         

Heptode

Use
  • Logic Switching Tube

    Similar/Equiv

    • E91H

    Condition

    New in Box (NOS)

    Tubes per listing

    5

     

    66XXX

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