UU.7
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BrandMazda
ClassRectifier
BaseBritish Octal
Filament4V @ 2.3mA
Construction
Primary TypeIndirectly heated
Rectifier TypeFull-wave
EnvelopeSmall, metallised
Sections2
Filament / Heater
Heater NotesIndirectly heated
Absolute Maximum Ratings
Plate Voltage400 V
Cathode Current180 mA
Audio Performance
Key Features
- Indirectly heated
- Small bulb dimensions
- Metallised
- British Octal Base
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Full Wave Rectifier | 300V | - | - | - | 120mA |
| Full Wave Rectifier | 350V | - | - | - | 180mA |
Application Notes
Suitable for mains portable receivers or any receivers where rectifier hum trouble is experienced due to cramped lay-out.
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