Tube-number record
DG7-31
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BrandPhilips
ClassCathode Ray Tube
BaseDuodecal
Filament6.3 V @ 300 mA
Construction
Primary TypeDisplay / CRT
EnvelopeGlass
SectionsSingle gun
Filament / Heater
Heater NotesIndirect by A.C. or D.C.; series or parallel supply
Absolute Maximum Ratings
Plate Voltage800 V
Plate Dissipation0.5 W
Grid 2 Voltage800 V
Grid 1 Voltage160 V
H-C Voltage125 V
Audio Performance
Key Features
- Low voltage
- Transparent conductive layer connected to (g2, g4)
- Symmetric D1D1' deflection
- Asymmetric D2D2' deflection
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Standard Operation | 500 V | — | — | — | 0.0005 mA |
Application Notes
The transparent conductive layer prevents picture distortion caused by touching the tube face and improves contrast.
Datasheets
Datasheet: DG7-31.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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