90EG4
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ClassOscilloscope Tube
BaseB.12.D
Filament6.4V @ 1mA
Construction
Primary TypeCathode Ray Tube
Envelope90mm Glass
SectionsSingle
Filament / Heater
Heater Notesa.c. or d.c.
Absolute Maximum Ratings
Plate Voltage5000 V
Audio Performance
Key Features
- Electrostatic focus
- Electrostatic deflection
- Green fluorescence
- Short persistence
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Condition 1 | 4000V | - | - | - | - |
| Condition 2 | 2000V | - | - | - | - |
Application Notes
Persistence: 10m sec. min./100m sec. max. for 1% initial brightness. Useful screen diameter 70 mm.
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