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

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Tube-number record

31E13

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BrandAssociated Electrical Industries Limited
ClassCathode-ray Tube
BaseDuodecal
Filament6.3 V @ 600 mA

Construction

Primary TypeTetrode
EnvelopeAluminised glass, 12-inch diameter flat face
SectionsSingle

Filament / Heater

Heater NotesIndirectly heated

Absolute Maximum Ratings

Plate Voltage15500 V
Grid 2 Voltage600 V
H-C Voltage150 V

Audio Performance

Key Features
  • Magnetically focused
  • Magnetically deflected
  • Aluminised tube
  • Flat face
  • Long persistence screens

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
PPI Application15000 V———0.05 mA

Application Notes

Primarily designed for PPI (Plan Position Indicator) applications. The T7 screen is liable to burn even at low beam current if spot is stationary.

Datasheets

Datasheet: 31E13.pdf

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

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