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BrandWestern Electric
ClassPower Pentode
Filament6.3V @ 450mA

Construction

Primary TypePentode
EnvelopeGlass
SectionsSingle

Filament / Heater

Heater NotesIndirectly heated

Absolute Maximum Ratings

Plate Voltage250 V
Plate Dissipation6.5 W
Grid 2 Voltage250 V

Audio Performance

Typical THD10%
Power Output2.5 W
Key Features
  • Indirectly heated cathode
  • Power pentode

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Class A1250V400010000040026mA

Application Notes

Commonly used in telephone and audio equipment by Western Electric.

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