AF31-10
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BrandMullard
ClassRadar Tube
BaseB12A
Filament6.3V @ 300mA
Construction
Primary TypeCathode Ray Tube
EnvelopeGlass with 12-in metal-backed screen
SectionsSingle
Filament / Heater
Heater NotesSuitable for series or parallel operation
Absolute Maximum Ratings
Plate Voltage18000 V
Grid 2 Voltage500 V
Grid 1 Voltage-200 V
H-C Voltage150 V
Audio Performance
Key Features
- Metal-backed screen
- Magnesium fluoride screen
- Low voltage electrostatic focusing
- Orange afterglow
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Radar Operation | 12000V | - | - | - | 0.015mA |
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