Tube-number record
3EY1
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3EY1 is a tube type in the TubeDatabase archive (class: Oscilloscope Tube). Recorded specifications: construction Electrostatic Focus, Electrostatic Deflection, socket CRT base (B12 family), and maximum plate voltage 2500 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 TypeElectrostatic Focus, Electrostatic Deflection
Envelope70 mm Diameter Bulb
SectionsSingle
Filament / Heater
Heater Notesa.c. or d.c.
Absolute Maximum Ratings
Plate Voltage2500 V
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Post Deflector Accelerator Condition 1 | 2000 V | — | — | — | — |
| Post Deflector Accelerator Condition 2 | 1300 V | — | — | — | — |
Application Notes
The undeflected focused spot will fall within a circle having a 7 mm. radius concentric with the centre of the tube face.
Datasheets
Datasheet: 3EY1.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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