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

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PL38 vacuum tube outline illustration

Tube-number record

PL38

0 archive entries

PL38 is a tube type in the TubeDatabase archive (class: Output Pentode). Recorded specifications: brand Mullard, construction Pentode, socket Octal, maximum plate voltage 800 V, and maximum plate dissipation 25 W. The archive does not yet hold a photographed example of this type.

BrandMullard
ClassOutput Pentode
BaseOctal
Filament— V @ 0.3 mA

Construction

Primary TypePentode
EnvelopeGlass

Filament / Heater

Heater NotesSuitable for series operation, a.c. or d.c.

Absolute Maximum Ratings

Plate Voltage800 V
Plate Dissipation25 W

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Typical characteristics200 V135002000016.575 mA

Application Notes

Primarily intended for use as line time base output valve in television receivers.

Datasheets

Datasheet: PL38.pdf

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

Filters

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Manufacturers

Brands

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    Grid 2 Voltage400 V
    Grid 1 Voltage-1.3 V
    Cathode Current200 mA
    H-C Voltage200 V

    Audio Performance

    Key Features
    • Line time base output valve
    • Series connected heaters