DG 7-3
0 Tubes in archive
BrandPHILIPS
ClassCathode Ray Tube
Filament6.3V @ 400mA
Construction
Primary TypeHigh vacuum CATHODE RAY TUBE
EnvelopeGlass
SectionsSingle
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
H-C Voltage100 V
Audio Performance
Key Features
- Electrostatic focusing
- Double electrostatic deflection
- Symmetrical deflection
- High vacuum
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Oscillography | 800V | - | - | - | - |
Application Notes
Screen variants determine specific suffix: DB (Blue), DG (Green), DN (Long persistent), DR (Long persistent). Measured on a circle of 50 mm diameter.
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