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Tube Database (7,341 tube types · 1,270 archive entries)

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DG7-31 vacuum tube outline illustration

Tube-number record

DG7-31

0 archive entries

DG7-31 is a tube type in the TubeDatabase archive (class: Cathode Ray Tube). Recorded specifications: brand Philips, construction Display / CRT, socket Duodecal, maximum plate voltage 800 V, and maximum plate dissipation 0.5 W. The archive does not yet hold a photographed example of this type.

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

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Standard Operation500 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

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Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.

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Brands

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    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