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

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Tube-number record

DOUBLE DIODE OUTPUT PENTODE

0 archive entries

DOUBLE DIODE OUTPUT PENTODE is a tube type in the TubeDatabase archive (class: Output Pentode). Recorded specifications: brand Mullard, construction Pentode, socket Octal, maximum plate voltage 250 V, and maximum plate dissipation 9 W. The archive does not yet hold a photographed example of this type.

BrandMullard
ClassOutput Pentode
BaseOctal
Filament44.9 V @ 0.2 mA

Construction

Primary TypePentode
EnvelopeST
SectionsDouble Diode Output Pentode

Filament / Heater

Heater NotesSuitable for DC/AC operation

Absolute Maximum Ratings

Plate Voltage250 V

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Class A200 V800035000—45 mA

Application Notes

High-sensitivity output pentode for use in A.C. mains-operated equipment, combined with twin diodes.

Filters

0 tubes found

Manufacturers

Brands

    0 results
    Plate Dissipation9 W
    Grid 2 Voltage250 V
    Grid 1 Voltage-1.3 V
    Cathode Current70 mA
    H-C Voltage125 V

    Audio Performance

    Typical THD10%
    Power Output4 W
    Key Features
    • High-sensitivity
    • DC/AC operation
    • Double diode combined