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
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| PPI Application | 15000 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
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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