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

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7231 vacuum tube outline illustration

Tube-number record

7231

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7231 is a tube type in the TubeDatabase archive (class: Subminiature Cold-Cathode Trigger Tube). Recorded specifications: brand CBS-HYTRON, construction Other / special, socket Subminiature, maximum plate voltage 700 V, and maximum plate dissipation 0.1 W. The archive does not yet hold a photographed example of this type.

BrandCBS-HYTRON
ClassSubminiature Cold-Cathode Trigger Tube
BaseSubminiature

Construction

Primary TypeOther / special
EnvelopeT3
SectionsSingle

Filament / Heater

Absolute Maximum Ratings

Plate Voltage700 V
Plate Dissipation0.1 W

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Trigger Application550 V———0.05 mA

Application Notes

Operates over an ambient temperature range of -55°C to +85°C. Dark-start design allows operation in sealed enclosures without incident light.

Datasheets

Datasheet: 7231.pdf

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

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    Grid 1 Voltage45 V

    Audio Performance

    Key Features
    • Dark-start design
    • Short anode delay variation
    • High pulse currents
    • High hold-off voltage
    • Vibration resistant