Tube-number record
WL-881
0 archive entries
WL-881 is a tube type in the TubeDatabase archive (class: Mercury Vapor Rectifier). Recorded specifications: brand Westinghouse, construction Diode, and maximum plate voltage 15000 V. The archive does not yet hold a photographed example of this type.
BrandWestinghouse
ClassMercury Vapor Rectifier
Filament5 V @ 9500 mA
Construction
Primary TypeDiode
Rectifier TypeMercury Vapor
EnvelopeGlass
SectionsSingle
Filament / Heater
Heater NotesIndirectly Heated Type (Unipotential Cathode)
Absolute Maximum Ratings
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Single-phase full-wave (Natural Cooling) | 3540 V | — | — | — | 10000 mA |
| Single-phase full-wave (Forced Air Cooling) | 5300 V | — | — | — | 10000 mA |
Application Notes
The anode return should be made to the cathode pin adjacent to the letter 'C' stamped on the edge of the base. Sufficient preheating time to bring the tube within the required operating temperature range is always necessary. Condensed mercury temperature should be within 30-60C for natural cooling or 30-40C for forced air cooling.
Datasheets
Datasheet: WL-881.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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