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

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Tube-number record

7733

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7733 is a tube type in the TubeDatabase archive (class: Pentode). Recorded specifications: brand CBS, construction Pentode, base Gold plated pins, socket Noval (B9A), maximum plate voltage 330 V, and maximum plate dissipation 6.5 W. The archive does not yet hold a photographed example of this type.

BrandCBS
ClassPentode
BaseNoval (B9A)
Filament6.3 V @ 600 mA

Construction

Primary TypePentode
EnvelopeT-6 1/2
Base MaterialGold plated pins
SectionsSingle

Filament / Heater

Heater NotesContinuous-wound coil heater; Peak heater-cathode voltage 200V

Absolute Maximum Ratings

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Class A Amplifier250 V120009000031.524 mA

Application Notes

Designed for use in measurement test equipment, instrumentation, and applications requiring extreme reliability and long life.

Datasheets

Datasheet: 7733.pdf

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

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Manufacturers

Brands

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    Plate Voltage330 V
    Plate Dissipation6.5 W
    Grid 2 Voltage190 V
    Grid 1 Voltage-55 V
    H-C Voltage200 V

    Audio Performance

    Key Features
    • Gold plated base pins
    • Wideband performance
    • High reliability
    • Stable characteristics
    • 5000-hour informational life test
    • Low noise and microphonism
    • Replacement for 12BY7 and 12BY7A