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

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8414 vacuum tube outline illustration

Tube-number record

8414

0 archive entries

8414 is a tube type in the TubeDatabase archive (class: Pentode). Recorded specifications: brand SYLVANIA, construction Pentode, socket Subminiature, and maximum plate voltage 55 V. The archive does not yet hold a photographed example of this type.

BrandSYLVANIA
ClassPentode
BaseSubminiature
Filament26.5 V @ 45 mA

Construction

Primary TypePentode
EnvelopeT-3
SectionsSingle

Filament / Heater

Heater NotesDesigned for plate operation at 26.5V

Absolute Maximum Ratings

Plate Voltage55 V

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
VHF RF/IF Amplifier26.5 V500050000—4.5 mA

Application Notes

Well suited to VHF RF and IF amplifier and mixer service at 26.5-V heater and plate operation. Designed for operation under conditions of severe shock, vibration, high temperature and high altitude.

Datasheets

Datasheet: 8414.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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    Grid 2 Voltage55 V
    Grid 1 Voltage-55 V
    Cathode Current10 mA
    H-C Voltage100 V

    Audio Performance

    Key Features
    • Frame grid
    • High transconductance
    • Low grid to plate capacitance
    • Shock resistant
    • Vibration resistant