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National Union 5857 VHF Secondary Emission Pentode Audio Vacuum Tube Valve- Bangybang.tube

Brand

National Union

Model

5857

Type                                         

Secondary Emission Pentode
Use
  • Vf 6.3 Volts / If 0.45 Ampere / Indirect

            Similar/Equiv

            n/A

            Condition

            New in Box (NOS)

            Tubes per listing

            2

             

            05XXX