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

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6LB8 vacuum tube outline illustration

Tube-number record

6LB8

0 archive entries

6LB8 is a tube type in the TubeDatabase archive (class: Receiving Tube). Recorded specifications: brand SYLVANIA, construction Multi-section, base Glass, socket Noval (B9A), maximum plate voltage 330 V, and maximum plate dissipation 4 W. The archive does not yet hold a photographed example of this type.

BrandSYLVANIA
ClassReceiving Tube
BaseNoval (B9A)
Filament6.32 V @ 725 mA

Construction

Primary TypeMulti-section
EnvelopeT-9
Base MaterialGlass
SectionsTriode, Sharp Cutoff Pentode

Filament / Heater

Heater NotesParallel Operation

Absolute Maximum Ratings

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Triode Section125 V500060003013 mA
Pentode Section200 V2000050000—17 mA

Datasheets

Datasheet: 6LB8.pdf

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

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Manufacturers

Brands

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    Plate Voltage330 V
    Plate Dissipation4 W
    Grid 2 Voltage330 V
    H-C Voltage200 V

    Audio Performance

    Key Features
    • Strap frame grid
    • Sharp cutoff pentode
    • Medium mu triode