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

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UABC80 vacuum tube outline illustration

Tube-number record

UABC80

0 archive entries

UABC80 is a tube type in the TubeDatabase archive (class: Triple Diode Triode). Recorded specifications: brand Philips, construction Multi-section, socket Noval (B9A), maximum plate voltage 250 V, and maximum plate dissipation 1 W. The archive does not yet hold a photographed example of this type.

BrandPhilips
ClassTriple Diode Triode
BaseNoval (B9A)
Filament28 V @ 100 mA

Construction

Primary TypeMulti-section
EnvelopeGlass
Sections4

Filament / Heater

Heater NotesIndirect heating, series supply

Absolute Maximum Ratings

Plate Voltage250 V

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Triode Section100 V130054000700.8 mA
Triode Section170 V130054000701 mA
Triode Section200 V125056000701 mA

Application Notes

Recommended to connect pin 5 to earth. With regard to hum, a low AC voltage (<30V rms) between cathode and heater is recommended. This tube can be used without special microphonic precautions if input voltage is higher than 10mV for 50mW output.

Datasheets

Datasheet: UABC80.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 Dissipation1 W
    Grid 1 Voltage-1.3 V
    Cathode Current5 mA
    H-C Voltage150 V

    Audio Performance

    Power Output0.05 W
    Key Features
    • Triple diode triode structure
    • Suitable for FM or AM/FM receivers
    • Low microphony
    • High amplification factor
    Triode Section250 V120058000701 mA