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

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6999 vacuum tube outline illustration

Tube-number record

6999

0 archive entries

6999 is a tube type in the TubeDatabase archive (class: Traveling Wave Tube). Recorded specifications: brand SYLVANIA, construction Other / special, socket 6-pin, maximum plate voltage 1000 V, and maximum plate dissipation 40 W. The archive does not yet hold a photographed example of this type.

BrandSYLVANIA
ClassTraveling Wave Tube
Base6-pin
Filament8 V @ 800 mA

Construction

Primary TypeOther / special
EnvelopeMetal Capsule
SectionsSingle

Filament / Heater

Heater NotesAC Heater Voltage

Absolute Maximum Ratings

Plate Voltage1000 V

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
CW Amplifier850 V———20 mA

Datasheets

Datasheet: 6999.pdf

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

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Manufacturers

Brands

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    Plate Dissipation40 W
    Grid 2 Voltage1000 V
    Grid 1 Voltage800 V
    Cathode Current10 mA
    H-C Voltage10 V

    Audio Performance

    Power Output1 W
    Key Features
    • Traveling wave tube
    • CW or pulsed amplifier service
    • Frequency range 2000-4000 megacycles
    • Metal Capsule envelope
    • Philips Impregnated Cathode