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

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6N8 vacuum tube outline illustration

Tube-number record

6N8

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6N8 is a tube type in the TubeDatabase archive (class: Double Diode-Pentode). Recorded specifications: brand Philips, construction Multi-section, base Glass, socket Noval (B9A), maximum plate voltage 250 V, and maximum plate dissipation 2 W. The archive does not yet hold a photographed example of this type.

BrandPhilips
ClassDouble Diode-Pentode
BaseNoval (B9A)
Filament6.3 V @ 300 mA

Construction

Primary TypeMulti-section
EnvelopeT 6 1/2
Base MaterialGlass
Sections3

Filament / Heater

Heater NotesIndirectly heated

Absolute Maximum Ratings

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
RF/IF Amplifier250 V22001600000195 mA

Application Notes

Used for R.F., I.F. and A.F. amplification. Maximum grid leak resistor is 22 megohms if grid bias is obtained by voltage drop across grid leak.

Datasheets

Datasheet: 6N8.pdf

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

Filters

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Manufacturers

Brands

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    Plate Voltage250 V
    Plate Dissipation2 W
    Grid 2 Voltage250 V
    Grid 1 Voltage-1.3 V
    Cathode Current10 mA
    H-C Voltage50 V

    Audio Performance

    Power Output0.05 W
    Key Features
    • Double Diode
    • High-gain Pentode
    • Internal shield