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Tube Database (7,341 tube types · 1,270 archive entries)

Pre (2,630 tube types), Other (2,603 tube types), Power (1,292 tube types), Rectifier (816 tube types)
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371B vacuum tube outline illustration

Tube-number record

371B

0 archive entries

371B is a tube type in the TubeDatabase archive (class: High Voltage Rectifier). Recorded specifications: brand Central Electronic Manufacturers (Nucor), construction Diode, base Metal shell, socket 4-pin, and maximum plate voltage 25000 V. The archive does not yet hold a photographed example of this type.

BrandCentral Electronic Manufacturers (Nucor)
ClassHigh Voltage Rectifier
Base4-pin

Construction

Primary TypeDiode
Rectifier TypeHalf-wave
EnvelopeGlass
Base MaterialMetal shell
SectionsSingle

Filament / Heater

MaterialThoriated tungsten

Application Notes

Designed for operation in high voltage rectifier circuits where ambient temperatures and inverse voltage requirements preclude the use of mercury vapor or gas filled diodes. Mount vertically with adequate air space for ventilation.

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    Absolute Maximum Ratings

    Plate Voltage25000 V
    Cathode Current300 mA

    Audio Performance

    Key Features
    • Thoriated tungsten filament
    • High voltage rectifier
    • Rugged construction
    • Overload capacity
    • Air cooled