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

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DF63 vacuum tube outline illustration

Tube-number record

DF63

0 archive entries

DF63 is a tube type in the TubeDatabase archive (class: Pentode). Recorded specifications: brand Mullard, construction Pentode, base Glass, socket Subminiature, and maximum plate voltage 90 V. The archive does not yet hold a photographed example of this type.

BrandMullard
ClassPentode
BaseSubminiature

Construction

Primary TypePentode
EnvelopeSubminiature
Base MaterialGlass
Sections1

Filament / Heater

MaterialDirectly heated

Absolute Maximum Ratings

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Pentode operation67.5 V8501600000—1.7 mA

Application Notes

Direct soldered connections to the leads must be at least 5mm from the seal and any bending of the valve leads must be at least 1.5mm from the seal.

Datasheets

Datasheet: DF63.pdf

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

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    Plate Voltage90 V
    Grid 2 Voltage67.5 V
    Cathode Current2.5 mA

    Audio Performance

    Key Features
    • Subminiature
    • Variable-mu
    • Battery operated