31C81
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BrandEDISWAN
ClassCathode Ray Tube
BaseB14A (Diheptal)
Filament6.3V @ 500mA
Construction
Primary TypeElectrostatic
EnvelopeGlass
SectionsSingle Gun
Filament / Heater
Heater NotesHeater 100V Negative with respect to cathode
Absolute Maximum Ratings
Plate Voltage8000 V
Grid 2 Voltage2000 V
Grid 1 Voltage-200 V
H-C Voltage150 V
Audio Performance
Key Features
- Post Deflection Acceleration
- Flat screen
- High Precision Instruments
- All Electrostatic
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Typical Operation | 4000V | - | - | - | 0.002mA |
Application Notes
The magnetic shield should be of high permeability material and earthed. For direct measurement of deflection amplitudes, Va4/Va3 ratio should not exceed 2:1.
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