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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

4059-A

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BrandStandard Valves
ClassRectifier

Construction

Primary TypeRectifier
Rectifier TypeVacuum
EnvelopeGlass
SectionsSingle

Filament / Heater

MaterialPure Tungsten

Absolute Maximum Ratings

Plate Voltage25000 V
Plate Dissipation300 W
Cathode Current350 mA

Audio Performance

Key Features
  • Half wave
  • Radiation cooled
  • Pure Tungsten filament
  • Constant voltage type cathode

Application Notes

Commonly used in circuits providing load potentials from 3,750V to 10,000V depending on the number of valves and circuit configuration.

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