DG 7-78
0 Tubes in archive
BrandPhilips
ClassCathode Ray Tube
BaseAll-glass base
Construction
Primary TypeOscilloscope Tube
EnvelopeGlass
Base MaterialGlass
SectionsSingle
Filament / Heater
Absolute Maximum Ratings
Plate Voltage2800 V
Grid 2 Voltage700 V
Audio Performance
Key Features
- Helical post-deflection acceleration electrode
- Post-acceleration (naversnelling)
- All-glass base
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Oscillograph Operation | 1200V | - | - | - | - |
Application Notes
The Vg4 ring voltage is set at 700V. High sensitivity focus lens sensitive to eccentricities. Phosphor coating requires rapid drying to avoid thick binding layers.
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