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

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17LD8 vacuum tube outline illustration

Tube-number record

17LD8

0 archive entries

17LD8 is a tube type in the TubeDatabase archive (class: Triode-Pentode). Recorded specifications: brand Sylvania, construction Multi-section, socket Noval (B9A), maximum plate voltage 250 V, and maximum plate dissipation 7 W. The archive does not yet hold a photographed example of this type.

BrandSylvania
ClassTriode-Pentode
BaseNoval (B9A)
Filament16.6 V @ 450 mA

Construction

Primary TypeMulti-section
EnvelopeT-9
Sections2

Filament / Heater

Heater NotesSeries operation

Absolute Maximum Ratings

Plate Voltage250 V

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Triode Section150 V19001130021.58.5 mA
Pentode Section120 V710011700—46 mA

Application Notes

Intended for vertical deflection oscillator and amplifier applications in television receivers.

Datasheets

Datasheet: 17LD8.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 Dissipation7 W
    Grid 2 Voltage200 V
    Grid 1 Voltage-150 V
    Cathode Current70 mA
    H-C Voltage200 V

    Audio Performance

    Key Features
    • Series heater operation
    • Triode-Pentode structure
    • Vertical deflection service