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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

1878

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ClassHigh voltage half-wave rectifier
BaseScrew / Edison base
Filament4 V @ 700 mA

Construction

Primary TypeVacuum
Rectifier TypeHalf-wave
EnvelopeGlass
Sections1

Filament / Heater

Heater NotesIndirect by A.C.

Absolute Maximum Ratings

Plate Voltage10500 V
Cathode Current2 mA

Audio Performance

Key Features
  • High vacuum
  • High voltage
  • Indirect heating

Application Notes

High vacuum half-wave rectifying valve designed for high voltage applications.

Datasheets

Datasheet: 1878.pdf

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Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.

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