Tube-number record
677
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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
Plate Voltage10000 V
Grid 1 Voltage500 V
Cathode Current4000 mA
Audio Performance
Key Features
- Air Cooled
- Grid Controlled
- Mercury Vapor
- Negative Control Characteristic
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Tube Voltage Drop | 12 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
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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