90EO4
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ClassOscilloscope Tube
BaseB.12.D
Filament4V @ 1000mA
Construction
Primary TypeCathode Ray Tube
EnvelopeGlass
SectionsSingle
Filament / Heater
Heater Notesac or dc
Absolute Maximum Ratings
Plate Voltage5000 V
Audio Performance
Key Features
- Electrostatic focus
- Electrostatic deflection
- Long persistence afterglow
- Internal conductive coating
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Operation 1 | 4000V | - | - | - | - |
| Operation 2 | 2000V | - | - | - | - |
Application Notes
The angle between X and Y traces is 90 degrees. Deflection spot within 6mm radius of center.
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