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

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6397 vacuum tube outline illustration

Tube-number record

6397

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6397 is a tube type in the TubeDatabase archive (class: Pentode). Recorded specifications: brand Mazda, construction Pentode, socket Special / none, maximum plate voltage 135 V, and maximum plate dissipation 1.5 W. The archive does not yet hold a photographed example of this type.

BrandMazda
ClassPentode
BaseSpecial / none

Construction

Primary TypePentode
EnvelopeA10-2bis
Sections1

Filament / Heater

MaterialDirectly Heated

Absolute Maximum Ratings

Plate Voltage135 V

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Nominal125 V1950——7 mA
Frequency Doubler (125 MHz)120 V———6.5 mA
Frequency Doubler (250 MHz)120 V———7.9 mA

Application Notes

Frequency doubler operation possible up to 250 MHz. When filaments are parallel-fed, connect positive to pin 5 and negative to pins 1 and 7.

Datasheets

Datasheet: 6397.pdf

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

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    Plate Dissipation
    1.5 W
    Grid 2 Voltage135 V
    Grid 1 Voltage-100 V
    Cathode Current14 mA

    Audio Performance

    Power Output0.14 W
    Key Features
    • Subminiature
    • Directly heated cathode
    • RF Power Amplifier
    • Series or parallel filament operation