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

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8527 vacuum tube outline illustration

Tube-number record

8527

0 archive entries

8527 is a tube type in the TubeDatabase archive (class: Medium-mu Triode). Recorded specifications: brand Toshiba, construction Triode, base Ceramic, socket Subminiature, maximum plate voltage 165 V, and maximum plate dissipation 3.3 W. The archive does not yet hold a photographed example of this type.

BrandToshiba
ClassMedium-mu Triode
BaseSubminiature
Filament6.3 V @ 150 mA

Construction

Primary TypeTriode
EnvelopeMetal shell
Base MaterialCeramic

Filament / Heater

Heater NotesCoated unipotential cathode

Absolute Maximum Ratings

Plate Voltage165 V

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Class A1 amplifier100 V58004650278.5 mA
Class A1 amplifier150 V650041502713 mA

Datasheets

Datasheet: 8527.pdf

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

Filters

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Manufacturers

Brands

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    Plate Dissipation3.3 W
    Grid 1 Voltage-55 V
    Cathode Current22 mA
    H-C Voltage200 V

    Audio Performance

    Key Features
    • Micro metal miniature construction
    • Ceramic stem
    • Industrial and military airborne equipment usage
    • Severe shock and vibration resistant
    • High frequency up to 500 Mc/s