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5642 NOS JAN Sylvania 5 Tubes SN956B DY70 Vacuum Tube
5642 NOS JAN Sylvania 5 Tubes SN956B DY70 Vacuum Tube
5642 NOS JAN Sylvania 5 Tubes SN956B DY70 Vacuum Tube
5642 NOS JAN Sylvania 5 Tubes SN956B DY70 Vacuum Tube

5642 NOS JAN Sylvania 5 Tubes SN956B DY70 Vacuum Tube

$ 12.9

Availability: 100 in stock
  • Model: SN 956 B DY 70
  • Condition: New
  • Type: Vacuum Tube
  • Brand: SYLVANIA
  • All returns accepted: ReturnsNotAccepted

    Description

    This listing is for
    5 tubes of NOS 5642 JAN Sylvania vacuum tubes (Military Grade).
    The
    5642
    is a directly-heated high-voltage rectifier tube. It has three flexible lead connections and is intended to be soldered into the circuit. The European type DY70 is very similar (with lower heater current).
    It is used in the CRT cathode and post-deflection acceleration supplies in many Tektronix scopes. In typical CRT circuits, the filament/cathode leads of each 5642 have their own secondary winding on the HV transformer, typically a single loop of wire with extra silicone tube insulation.
    Shipping: .45