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

Other (3,257 tube types), Pre (2,314 tube types), Power (1,030 tube types), Rectifier (740 tube types)
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Tube-number record

371B

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

Construction

Primary TypeDiode
Rectifier TypeHalf-wave
EnvelopeGlass
Base MaterialMetal shell
SectionsSingle

Filament / Heater

MaterialThoriated tungsten

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

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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