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

Pre (2,630 tube types), Other (2,603 tube types), Power (1,292 tube types), Rectifier (816 tube types)
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LV 4 vacuum tube outline illustration

Tube-number record

LV 4

0 archive entries

LV 4 is a tube type in the TubeDatabase archive (class: Gegentaktpentode). Recorded specifications: brand TELEFUNKEN, year 1943, construction Pentode, base Metal/Phenolic, socket Special / none, maximum plate voltage 300 V, and maximum plate dissipation 3 W. The archive does not yet hold a photographed example of this type.

BrandTELEFUNKEN
ClassGegentaktpentode
BaseSpecial / none
Filament12.6 V @ 0.25 mA

Construction

Primary TypePentode
EnvelopeGlass
Base MaterialMetal/Phenolic
SectionsDouble Push-Pull

Filament / Heater

Heater NotesIndirekt geheizt

Absolute Maximum Ratings

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
HF-Empfangsstufen250 V6900300000—10 mA

Application Notes

Broadband amplifier and small transmitter stages. Suitable for wavelengths down to 0.8 meters.

Filters

0 tubes found

Manufacturers

Brands

    0 results
    Plate Voltage300 V
    Plate Dissipation3 W
    Grid 2 Voltage300 V
    Cathode Current25 mA
    H-C Voltage50 V

    Audio Performance

    Key Features
    • Ruggedized for mobile use
    • Internal push-pull symmetry
    • Low input damping at high frequencies