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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

HIGH SLOPE R.F. PENTODE

0 archive entries

HIGH SLOPE R.F. PENTODE is a tube type in the TubeDatabase archive (class: Pentode). Recorded specifications: brand Mullard, construction Pentode, socket 7-pin (non-miniature), and maximum plate voltage 250 V. The archive does not yet hold a photographed example of this type.

BrandMullard
ClassPentode
Base7-pin (non-miniature)
Filament4 V @ 1.3 mA

Construction

Primary TypePentode
EnvelopeMetallised
SectionsSingle

Filament / Heater

Heater NotesIndirectly heated

Absolute Maximum Ratings

Plate Voltage250 V

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
H.F. or L.F. Amplifier200 V4730—67308 mA
Output Valve for CRT250 V—750000—10.5 mA

Application Notes

Specially designed for application in television receivers, suitable for general use including that of an output valve for modulating a cathode ray tube.

Filters

0 tubes found

Manufacturers

Brands

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    Grid 2 Voltage250 V
    Grid 1 Voltage-1 V
    Cathode Current20 mA

    Audio Performance

    Typical THD3.9%
    Key Features
    • High slope
    • Indirectly heated
    • Metallised bulb finish