Tube-number record
90EG4P
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ClassOscilloscope Tube
BaseCRT base (B12 family)
Filament4 V @ 1 mA
Construction
Primary TypeDisplay / CRT
EnvelopeGlass
SectionsSingle beam
Filament / Heater
Heater Notesac or dc
Absolute Maximum Ratings
Plate Voltage6000 V
Grid 2 Voltage4000 V
Audio Performance
Key Features
- Electrostatic Focus
- Electrostatic Deflection
- Green Fluorescence
- Short Persistence
- Post Deflector Accelerator
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Typical Operation | 4000 V | — | — | — | — |
Application Notes
The angle between X and Y traces is 90 degrees. Spot falls within a 6mm radius circle from the tube center.
Datasheets
Datasheet: 90EG4P.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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