E713B
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BrandEnglish Electric Valve Company Limited
ClassDirect View Storage Tube
BaseFlexible leads with BS 448 CT5 cavity caps
Filament6.3V @ 0.6mA
Construction
Primary TypeDirect view storage tube
EnvelopeGlass with ruggedized construction
Base MaterialFlexible leads
SectionsDual gun (writing and flood)
Filament / Heater
Heater NotesTwo identical heaters, one for writing gun, one for flood gun
Absolute Maximum Ratings
Plate Voltage12000 V
Plate Dissipation60 W
Grid 2 Voltage200 V
Grid 1 Voltage-150 V
Cathode Current10 mA
H-C Voltage125 V
Audio Performance
Key Features
- Ruggedized construction
- Daylight viewing capability
- Magnetically deflected writing gun
- High brightness
- Controlled persistence
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Flood Gun Operation | 10000V | - | - | - | 0.4mA |
| Writing Gun Operation | -1800V | - | - | - | 0.045mA |
Application Notes
Particularly suitable for daylight viewing of radar displays in airborne applications where vibration and low pressure are encountered.
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