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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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Tube-number record

6.F.12

0 archive entries

6.F.12 is a tube type in the TubeDatabase archive (class: High Slope Screened R.F. Pentode). Recorded specifications: brand MAZDA, year 1948, construction Pentode, base Miniature, socket Miniature 7-pin (B7G), maximum plate voltage 250 V, and maximum plate dissipation 2.5 W. The archive does not yet hold a photographed example of this type.

BrandMAZDA
ClassHigh Slope Screened R.F. Pentode
BaseMiniature 7-pin (B7G)
Filament6.3 V @ 300 mA

Construction

Primary TypePentode
EnvelopeGlass
Base MaterialMiniature
SectionsSingle

Filament / Heater

Heater NotesIndirectly heated - for parallel operation

Absolute Maximum Ratings

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Pentode250 V7500900007410 mA
Pentode200 V7200——8.3 mA

Filters

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Manufacturers

Brands

    0 results
    Plate Voltage250 V
    Plate Dissipation2.5 W
    Grid 2 Voltage250 V
    H-C Voltage150 V

    Audio Performance

    Key Features
    • High Slope
    • Screened
    • R.F. Pentode
    • Indirectly heated