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

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8506 vacuum tube outline illustration

Tube-number record

8506

0 archive entries

8506 is a tube type in the TubeDatabase archive (class: Metal-Ceramic Triode). Recorded specifications: brand Toshiba, construction Triode, socket Planar / disc seal, maximum plate voltage 300 V, and maximum plate dissipation 5 W. The archive does not yet hold a photographed example of this type.

BrandToshiba
ClassMetal-Ceramic Triode
BasePlanar / disc seal
Filament6.3 V @ 400 mA

Construction

Primary TypeTriode
EnvelopeMetal-Ceramic
Sections1

Filament / Heater

Heater NotesCoated Unipotential Cathode

Absolute Maximum Ratings

Plate Voltage300 V

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Average Characteristics200 V29000—11025 mA

Application Notes

Designed for use as a radio-frequency power amplifier in the UHF range. For applications where long life is a primary consideration, it is recommended that the envelope temperature be maintained below 175 °C.

Datasheets

Datasheet: 8506.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 Dissipation5 W
    Grid 1 Voltage-50 V
    Cathode Current40 mA
    H-C Voltage50 V

    Audio Performance

    Key Features
    • Metal-ceramic planar construction
    • Radio-frequency power amplifier in the UHF range
    • Coated unipotential cathode