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

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OM 1138 vacuum tube outline illustration

Tube-number record

OM 1138

0 archive entries

OM 1138 is a tube type in the TubeDatabase archive (class: Cathode Ray Tube (CRT)). Recorded specifications: brand Compagnie Générale de Télégraphie Sans Fil (CSF), year 1960, construction Electrostatic Focus, Magnetic Deflection, base Plastic/Metal, socket 6-pin, maximum plate voltage 16000 V, and maximum plate dissipation 6 W. The archive does not yet hold a photographed example of this type.

BrandCompagnie Générale de Télégraphie Sans Fil (CSF)
ClassCathode Ray Tube (CRT)
Base6-pin
Filament6.3 V @ 600 mA

Construction

Primary TypeElectrostatic Focus, Magnetic Deflection
EnvelopeGlass
Base MaterialPlastic/Metal
Sections1

Filament / Heater

Heater NotesTolerance +/- 10%

Absolute Maximum Ratings

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Standard operation15000 V———0.005 mA

Application Notes

The tube must be handled by the bulb, never the neck. Shielding with Mu-metal is recommended to protect from electromagnetic fields.

Filters

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Manufacturers

Brands

    0 results
    Plate Voltage16000 V
    Plate Dissipation6 W
    Grid 2 Voltage770 V
    Grid 1 Voltage-200 V
    H-C Voltage180 V

    Audio Performance

    Key Features
    • Aluminized screen
    • High definition
    • Semi-flat face
    • Reinforced military structure