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

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AF31-10 vacuum tube outline illustration

Tube-number record

AF31-10

0 archive entries

AF31-10 is a tube type in the TubeDatabase archive (class: Radar Tube). Recorded specifications: brand Mullard, construction Display / CRT, socket Duodecal, and maximum plate voltage 18000 V. The archive does not yet hold a photographed example of this type.

BrandMullard
ClassRadar Tube
BaseDuodecal
Filament6.3 V @ 300 mA

Construction

Primary TypeDisplay / CRT
EnvelopeGlass with 12-in metal-backed screen
SectionsSingle

Filament / Heater

Heater NotesSuitable for series or parallel operation

Absolute Maximum Ratings

Plate Voltage18000 V

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Radar Operation12000 V———0.015 mA

Datasheets

Datasheet: AF31-10.pdf

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

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    Audio Performance

    Key Features
    • Metal-backed screen
    • Magnesium fluoride screen
    • Low voltage electrostatic focusing
    • Orange afterglow