U31
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BrandMarconi
ClassHalf Wave Rectifier
BaseOctal
Filament26V @ 300mA
Construction
Primary TypeHalf-wave rectifier
EnvelopeGlass
Sections1
Filament / Heater
Heater NotesIndirectly heated; suitable for series operation in A.C./D.C. sets.
Absolute Maximum Ratings
Plate Voltage250 V
Cathode Current100 mA
Audio Performance
Key Features
- Indirectly heated
- Low impedance
- Minimum voltage drop
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