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

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8893 vacuum tube outline illustration

Tube-number record

8893

0 archive entries

8893 is a tube type in the TubeDatabase archive (class: Planar Triode). Recorded specifications: brand Eimac, year 1970, construction Triode, base Metal, and maximum plate dissipation 100 W. The archive does not yet hold a photographed example of this type.

BrandEimac
ClassPlanar Triode
Filament6.3 V @ 1300 mA

Construction

Primary TypeTriode
EnvelopeCeramic/Metal
Base MaterialMetal
SectionsSingle

Filament / Heater

Heater NotesOxide Coated, Unipotential. Cathode heating time: 60 sec.

Absolute Maximum Ratings

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Grid-Pulsed Oscillator1500 V30000—603000 mA

Application Notes

The construction of the 8893 readily lends itself to cavity circuit operation resulting in an extremely compact RF source. Ceramic/metal seals rated for 250°C.

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    Plate Dissipation100 W

    Audio Performance

    Key Features
    • Compact rugged ceramic/metal planar triode
    • High power output
    • High plate efficiency
    • Excellent frequency stability
    • Cavity circuit operation