3EY1
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ClassOscilloscope Tube
BaseB.12.B
Filament4V @ 1000mA
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
Grid 1 Voltage-145 V
Audio Performance
Key Features
- Electrostatic Focus
- Electrostatic Deflection
- Yellow Afterglow
- Post Deflector Accelerator
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Post Deflector Accelerator Condition 1 | 2000V | - | - | - | - |
| Post Deflector Accelerator Condition 2 | 1300V | - | - | - | - |
Application Notes
The undeflected focused spot will fall within a circle having a 7 mm. radius concentric with the centre of the tube face.
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