Tube-number record
90ED4P
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90ED4P is a tube type in the TubeDatabase archive (class: Oscilloscope Tube). Recorded specifications: construction Display / CRT, socket CRT base (B12 family), and maximum plate voltage 4000 V. The archive does not yet hold a photographed example of this type.
ClassOscilloscope Tube
BaseCRT base (B12 family)
Filament4 V @ 1000 mA
Construction
Primary TypeDisplay / CRT
EnvelopeGlass
SectionsSingle
Filament / Heater
Heater NotesAC or DC
Absolute Maximum Ratings
Plate Voltage4000 V
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Post Deflector Accelerator Operation | 2000 V | — | — | — | — |
Application Notes
The angle between the trace produced by X and Y plates is 90° ± 3°. Undeflected focused spot falls within a circle of 6mm radius from the centre.
Datasheets
Datasheet: 90ED4P.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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