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WL-881

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BrandWestinghouse
ClassMercury Vapor Rectifier
Filament5V @ 9500mA

Construction

Primary TypeDiode
Rectifier TypeMercury Vapor
EnvelopeGlass
SectionsSingle

Filament / Heater

Heater NotesIndirectly Heated Type (Unipotential Cathode)

Absolute Maximum Ratings

Plate Voltage15000 V
Cathode Current5000 mA

Audio Performance

Key Features
  • Indirectly Heated Type
  • Uni-potential cathode
  • Advanced design for high power delivery
  • Forced air or natural cooling options

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Single-phase full-wave (Natural Cooling)3540V---10000mA
Single-phase full-wave (Forced Air Cooling)5300V---10000mA

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.

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