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

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6AM5 vacuum tube outline illustration

Tube-number record

6AM5

0 archive entries

6AM5 is a tube type in the TubeDatabase archive (class: Power Amplifier Pentode). Recorded specifications: construction Pentode, base Glass, socket Miniature 7-pin (B7G), maximum plate voltage 250 V, and maximum plate dissipation 4 W. The archive does not yet hold a photographed example of this type.

ClassPower Amplifier Pentode
BaseMiniature 7-pin (B7G)
Filament6.3 V @ 0.2 mA

Construction

Primary TypePentode
EnvelopeT-5-1/2
Base MaterialGlass
SectionsSingle

Filament / Heater

Heater Notesa.c. or d.c.

Absolute Maximum Ratings

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Class A1 Pentode (Operating Point 1)200 V———20 mA
Class A1 Pentode (Operating Point 2)250 V260015000039016 mA
Class AB1 Push-Pull (Cathode Bias)250 V———

Application Notes

For Pin 2, Cathode and Grid No. 3 are connected. Pin 6 is listed as No Connection. For triode connection, Screen (Grid No. 2) is tied to plate at socket.

Datasheets

Datasheet: 6AM5.pdf

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

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    Plate Voltage250 V
    Plate Dissipation4 W
    Grid 2 Voltage250 V
    Cathode Current25 mA
    H-C Voltage50 V

    Audio Performance

    Typical THD10%
    Power Output1.4 W
    Key Features
    • Miniature Type
    • Unipotential Cathodes
    • High Power Output
    • Pentode or Triode connection
    25.6 mA
    Class AB1 Push-Pull (Fixed Bias)250 V———32 mA
    Class A1 Triode Connection250 V3000385014.8—