Tube-number record
F 8072
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BrandCSF
ClassCathode Ray Tube
BaseDiheptal
Filament6.3 V @ 600 mA
Construction
Primary TypeDisplay / CRT
EnvelopeGlass
Base MaterialPlastic/Glass
SectionsSingle beam
Filament / Heater
Heater NotesFilament indirect
Absolute Maximum Ratings
Plate Voltage13200 V
Grid 2 Voltage2200 V
Grid 1 Voltage-220 V
Cathode Current0.5 mA
H-C Voltage140 V
Audio Performance
Key Features
- Aluminized screen
- High writing speed
- High sensitivity
- Low inter-electrode capacitance
- Low distortion
- Electrostatic deflection
- Electrostatic focusing
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Example Operation | 10000 V | — | — | — | 0.005 mA |
Application Notes
Recommended to use Mu-metal shielding to avoid external magnetic field interference. Post-acceleration voltage (Grid 7) should not be less than 6000V for optimal brightness.
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