DB 4-2
0 Tubes in archive
BrandPHILIPS
ClassCathode Ray Tube
BaseLoctal 9-pin
Filament6.3V @ 0.314mA
Construction
Primary TypeOscillography Tube
EnvelopeGlass
Sections1
Filament / Heater
Heater NotesIndirect by A.C. or D.C.
Absolute Maximum Ratings
Plate Voltage1000 V
Grid 2 Voltage400 V
Grid 1 Voltage-100 V
Audio Performance
Key Features
- Blue fluorescence
- Short persistence
- Electrostatic focusing
- Asymmetric deflection
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Standard Operation | 800V | - | - | - | - |
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