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

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677 vacuum tube outline illustration

Tube-number record

677

0 archive entries

677 is a tube type in the TubeDatabase archive (class: Grid Controlled Mercury Vapor Rectifier). Recorded specifications: brand Westinghouse Electric Corp., construction Triode, and maximum plate voltage 10000 V. The archive does not yet hold a photographed example of this type.

BrandWestinghouse Electric Corp.
ClassGrid Controlled Mercury Vapor Rectifier
Filament5 V @ 10000 mA

Construction

Primary TypeTriode
Rectifier TypeMercury Vapor
EnvelopeGlass
SectionsSingle

Filament / Heater

Heater NotesCathode heating time: 5 minutes

Absolute Maximum Ratings

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Tube Voltage Drop12 V————

Application Notes

Optimum condensed mercury temperature: 35° to 45° C. Operational range: 30° to 50° C. Mounting Position: Pin Base Down.

Datasheets

Datasheet: 677.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 Voltage10000 V
    Grid 1 Voltage500 V
    Cathode Current4000 mA

    Audio Performance

    Key Features
    • Air Cooled
    • Grid Controlled
    • Mercury Vapor
    • Negative Control Characteristic