3JP-
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ClassCathode-ray Tube
BaseB12-37
Filament6.3V @ 600mA
Construction
Primary TypeCathode-ray Tube
EnvelopeGlass, 3-1/16" bulb diameter
Base MaterialMedium Shell Diheptal 12-Pin
SectionsSingle gun
Filament / Heater
Heater NotesHeater current 0.6A +/- 10%
Absolute Maximum Ratings
Plate Voltage2000 V
Plate Dissipation6 W
Grid 2 Voltage2000 V
Grid 1 Voltage-200 V
H-C Voltage125 V
Audio Performance
Key Features
- Extremely high current gun
- High excitation of the screen
- Intensifier electrode
- Negligible focusing electrode current
- High altitude insulation
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| 1500V Accelerator | 1500V | - | - | - | 0.01mA |
| 4000V Accelerator | 2000V | - | - | - | 0.01mA |
Application Notes
Designed for oscillographic applications requiring high light output and good deflection sensitivity. Product of Anode No. 2 voltage and average current should be limited to 6 watts.
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