DB 7-4
0 Tubes in archive
BrandPhilips
ClassCathode Ray Tube
BaseBENNE-AL
Filament6.3V @ 400mA
Construction
Primary TypeHigh vacuum CRT
EnvelopeGlass
SectionsSingle gun
Filament / Heater
Absolute Maximum Ratings
Plate Voltage1000 V
Grid 2 Voltage400 V
Grid 1 Voltage-100 V
Audio Performance
Key Features
- Blue screen
- Short persistence
- Electrostatic focusing
- Double electrostatic deflection
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Oscillography | 800V | - | - | - | - |
Application Notes
D2' has to be connected to a2 (asymmetric deflection).
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