DG 10-78
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BrandPhilips
ClassOscilloscope Cathode-Ray Tube
BaseDiheptal
Filament6.3V @ 300mA
Construction
Primary TypeElectrostatic focusing and deflection
EnvelopeGlass, flat faceplate
Sections1
Filament / Heater
Heater NotesIndirectly heated by A.C. or D.C.; parallel supply
Absolute Maximum Ratings
Plate Voltage8000 V
Plate Dissipation6 W
Grid 2 Voltage3000 V
Grid 1 Voltage-200 V
H-C Voltage180 V
Audio Performance
Key Features
- Helical post-deflection acceleration
- Tight-tolerance construction
- Post-acceleration ratio up to 4
- Separately connected isolation screen
- Correction of astigmatism and pattern distortion
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| PDA Ratio 1:1 | 2000V | - | - | - | - |
| PDA Ratio 1:2 | 4000V | - | - | - | - |
| PDA Ratio 1:4 | 4000V | - | - | - | - |
Application Notes
Used in oscilloscope applications ranging from simple, low-priced models to precision apparatus. Features a flat 10 cm (4") faceplate.
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