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

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HWL 412 vacuum tube outline illustration

Tube-number record

HWL 412

0 archive entries

HWL 412 is a tube type in the TubeDatabase archive (class: Traveling Wave Tube (Wanderfeldröhre)). Recorded specifications: brand VEB Werk für Fernsehelektronik Berlin, construction Other / special, socket Special / none, maximum plate voltage 1800 V, and maximum plate dissipation 80 W. The archive does not yet hold a photographed example of this type.

BrandVEB Werk für Fernsehelektronik Berlin
ClassTraveling Wave Tube (Wanderfeldröhre)
BaseSpecial / none
Filament6.3 V @ 850 mA

Construction

Primary TypeOther / special
EnvelopeGlass/Metal
Sections1

Filament / Heater

MaterialOxidkatode
Warm-up Time120s
Heater NotesIndirekt geheizte Oxidkatode

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Linearer Verstärker1800 V———40 mA
Leistungsverstärker1800 V———40 mA

Application Notes

Verwendbar in Senderstufen von Richtfunkgeräten oder als Verstärkerröhre für Meßzwecke. Erfordert den Fokalisator SF 412.

Datasheets

Datasheet: HWL412.pdf

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

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    Absolute Maximum Ratings

    Plate Voltage1800 V
    Plate Dissipation80 W
    Grid 2 Voltage1750 V
    Grid 1 Voltage100 V
    Cathode Current45 mA

    Audio Performance

    Key Features
    • Leistungsverstärkerröhre
    • Magnetisches Gleichfeld benötigt
    • Hohlleiter Ein- und Auskopplung (F 40)
    • Luftkühlung