F 8045
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BrandCSF
ClassCathode Ray Tube
BaseDuodecal 12-pin (UTE 12C27 modified)
Filament6.3V @ 300mA
Construction
Primary TypeCRT
EnvelopeGlass
Base MaterialPlastic
SectionsSingle beam
Filament / Heater
Heater NotesIndirectly heated
Absolute Maximum Ratings
Plate Voltage5500 V
Plate Dissipation6 W
Grid 2 Voltage950 V
Grid 1 Voltage-80 V
Cathode Current0.5 mA
H-C Voltage135 V
Audio Performance
Key Features
- High sensitivity
- Post-acceleration
- Flat face
- Electrostatic focus and deflection
- Separate blanking electrode
- Designed for transistor circuits
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Post-acceleration operation | 4000V | - | 1100000 | - | 0.005mA |
Application Notes
Recommended magnetic shielding (mu-metal). Grid 7 controls geometry; Grid 5 controls astigmatism. Screen phosphor options: P1, P2, P7, P11, P31.
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