Tube-number record
3EGI
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ClassOscilloscope Tube
BaseCRT base (B12 family)
Filament4 V @ 1000 mA
Construction
Primary TypeDisplay / CRT
EnvelopeGlass
Filament / Heater
Heater Notesa.c. or d.c. volts
Absolute Maximum Ratings
Plate Voltage2500 V
Grid 1 Voltage-145 V
Audio Performance
Key Features
- Electrostatic Focus
- Electrostatic Deflection
- Post Deflector Accelerator
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| PDA 4000V | 2000 V | — | — | — | — |
| PDA 2500V | 1300 V | — | — | — | — |
Application Notes
The angle between the trace produced by X and Y plates is 90 degrees. Undeflected focused spot within 7mm radius of center.
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