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

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Tube-number record

25JZ8

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25JZ8 is a tube type in the TubeDatabase archive (class: Vacuum Tube). Recorded specifications: brand General Electric, construction Multi-section, and socket Compactron. The archive does not yet hold a photographed example of this type.

BrandGeneral Electric
ClassVacuum Tube
BaseCompactron
Filament25.2 V @ 300 mA

Construction

Primary TypeMulti-section
EnvelopeCompactron
Sections2

Filament / Heater

MaterialCoated Unipotential
Warm-up Time11s
Heater NotesHeater voltage for a bogey tube at If = 0.3 amperes

Application Notes

The 25JZ8 is a compactron containing a medium-mu triode and a beam pentode. The triode is designed for service as a vertical-deflection oscillator and the pentode as a vertical-deflection amplifier in television receivers. Except for heater characteristics and ratings, the 25JZ8 is identical to the 6JZ8.

Datasheets

Datasheet: 25JZ8.pdf

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

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    Audio Performance

    Key Features
    • Medium-mu triode
    • Beam pentode
    • Vertical-deflection oscillator
    • Vertical-deflection amplifier