Tube-number record
90EB4F
0 archive entries
90EB4F is a tube type in the TubeDatabase archive (class: Oscilloscope Tube). Recorded specifications: construction Display / CRT, socket Compactron, and maximum plate voltage 5000 V. The archive does not yet hold a photographed example of this type.
ClassOscilloscope Tube
BaseCompactron
Filament4 V @ 1000 mA
Construction
Primary TypeDisplay / CRT
EnvelopeFlat Faced Bulb
Filament / Heater
Heater Notesa.c. or d.c.
Absolute Maximum Ratings
Plate Voltage5000 V
Audio Performance
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Condition 1 | 4000 V | — | — | — | — |
| Condition 2 | 2000 V | — | — | — | — |
Application Notes
The angle between X and Y traces is 90° ± 3°. Undeflected focused spot falls within a 6mm radius circle from the center.
Datasheets
Datasheet: 90EB4F.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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