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

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6303 vacuum tube outline illustration

Tube-number record

6303

0 archive entries

6303 is a tube type in the TubeDatabase archive (class: High-Vacuum Clipper Diode-Rectifier). Recorded specifications: brand UNITED, construction Diode, base Kovar Seal, socket 4-pin, maximum plate voltage 33000 V, and maximum plate dissipation 550 W. The archive does not yet hold a photographed example of this type.

BrandUNITED
ClassHigh-Vacuum Clipper Diode-Rectifier
Base4-pin

Construction

Primary TypeDiode
Rectifier TypeHigh-Vacuum
EnvelopeGlass
Base MaterialKovar Seal
SectionsSingle

Filament / Heater

MaterialBonded Thoria

Application Notes

Designed to withstand severe shock and vibration in military electronic equipment while delivering high peak power. The zirconium coated graphite anode improves dissipation characteristics.

Datasheets

Datasheet: 6303.pdf

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

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    Absolute Maximum Ratings

    Plate Voltage33000 V
    Plate Dissipation550 W
    Cathode Current500 mA

    Audio Performance

    Key Features
    • Bonded Thoria Filament
    • Kovar top seal
    • Zirconium coated graphite anode
    • Withstands 300g shock
    • Designed for military electronic equipment