31B81
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BrandEDISWAN
ClassCathode Ray Tube
BaseB14A (Diheptal)
Filament6.3V @ 0.5mA
Construction
Primary TypeCathode Ray Tube
EnvelopeGlass
SectionsSingle gun
Filament / Heater
Heater NotesHeater 100V negative to cathode
Absolute Maximum Ratings
Plate Voltage8000 V
Grid 2 Voltage2000 V
Grid 1 Voltage200 V
H-C Voltage150 V
Audio Performance
Key Features
- Post Deflection Acceleration
- Flat screen
- High precision instruments
- All electrostatic deflection
- Green, Blue, White, Yellow, or Orange Phosphors
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Typical Operation | 4000V | - | - | - | 0.002mA |
Application Notes
The undeflected spot will fall within a circle of 5 mm radius from the centre of the tube face. Orthogonality of deflection axes is +/- 1%. The magnetic shield should be of high permeability material and earthed.
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