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

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R123 vacuum tube outline illustration

Tube-number record

R123

0 archive entries

R123 is a tube type in the TubeDatabase archive (class: Power Pentode). Recorded specifications: brand La Radiotechnique, construction Pentode, maximum plate voltage 225 V, and maximum plate dissipation 8 W. The archive does not yet hold a photographed example of this type.

BrandLa Radiotechnique
ClassPower Pentode
Filament18 V @ 400 mA

Construction

Primary TypePentode
EnvelopeGlass
SectionsSingle

Filament / Heater

Heater NotesIndirect heating

Absolute Maximum Ratings

Plate Voltage225 V

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Nominal200 V85004300036535 mA

Application Notes

A n'utiliser qu'en polarisation automatique ou semi-automatique.

Datasheets

Datasheet: R123.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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    Plate Dissipation8 W
    Grid 2 Voltage225 V
    Cathode Current45 mA
    H-C Voltage50 V

    Audio Performance

    Typical THD6%
    Power Output2 W
    Key Features
    • Long life
    • Indirectly heated cathode
    • Automatic or semi-automatic bias only