12XP4
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BrandElectronic Tubes Ltd.
ClassTelevision Tube
BaseDuodecal (5Bt2A)
Filament6.3V @ 300mA
Construction
Primary TypeCathode Ray Tube
EnvelopeGlass
Sections1
Filament / Heater
Heater NotesIndirectly heated - series or parallel operation. Switching surge must not exceed 8.5 V.
Absolute Maximum Ratings
Plate Voltage9000 V
Grid 2 Voltage342 V
Grid 1 Voltage-1 V
Cathode Current0.2 mA
H-C Voltage150 V
Audio Performance
Key Features
- Fluorescent Color: White
- Magnetic Focus
- Magnetic Deflection
- Ion Trap
- 60-degree deflection angle
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Typical Operation | 8000V | - | - | - | 0.2mA |
Application Notes
Mounting position: Any, except vertical with screen uppermost. Grid drive for peak brightness is 30V change.
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