A28-14W
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BrandMullard
ClassTelevision Picture Tube
BaseB7G
Filament11V @ 68mA
Construction
Primary TypeMonochrome CRT
Envelope28cm Rectangular Glass
SectionsSingle
Filament / Heater
Heater NotesSuitable for battery or mains supply; limits for voltage cycles apply.
Absolute Maximum Ratings
Plate Voltage12000 V
Grid 2 Voltage350 V
Grid 1 Voltage-100 V
H-C Voltage110 V
Audio Performance
Key Features
- Metal backed screen
- Reinforced envelope
- No separate safety screen required
- Electrostatic focusing
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Visual extinction of focused raster | 11000V | - | - | - | 0.1mA |
Application Notes
Designed for portable receivers with push-through presentation. External conductive coating M must be connected to chassis.
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