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

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F4026B vacuum tube outline illustration

Tube-number record

F4026B

0 archive entries

F4026B is a tube type in the TubeDatabase archive (class: Traveling Wave Tube). Recorded specifications: brand THOMSON-CSF, construction Other / special, base Metal, socket Special / none, maximum plate voltage 1300 V, and maximum plate dissipation 4.2 W. The archive does not yet hold a photographed example of this type.

BrandTHOMSON-CSF
ClassTraveling Wave Tube
BaseSpecial / none
Filament6.3 V @ 420 mA

Construction

Primary TypeOther / special
EnvelopeCeramic and metal
Base MaterialMetal
SectionsSingle

Filament / Heater

Heater NotesIndirectly heated

Absolute Maximum Ratings

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Typical at 9.4 GHz1200 V———3.5 mA

Datasheets

Datasheet: F4026B.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 Voltage1300 V
    Plate Dissipation4.2 W
    Grid 2 Voltage1210 V
    Cathode Current7 mA

    Audio Performance

    Key Features
    • Wide band
    • Low noise
    • High gain
    • Periodic permanent magnet focusing
    • Rugged metal-ceramic construction
    • Military airborne application