1543
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BrandPhilips
ClassIndustrial Rectifier
Construction
Primary TypeMercury vapour and gas
Rectifier TypeFull-wave / Three-anode
EnvelopeGlass
Sections3
Filament / Heater
MaterialOxide-coated
Warm-up Time2s
Absolute Maximum Ratings
Plate Voltage275 V
Cathode Current25000 mA
Audio Performance
Key Features
- Three-anode rectifying valve
- Directly heated
- Mercury vapour and gas filled
- Auxiliary ignition electrode
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Arc Voltage | 15V | - | - | - | 8300mA |
Application Notes
Used for industrial rectifiers (25A per valve max, up to 110 Pb-cells). Requires auxiliary DC supply of 100V, 25mA for the ignition electrode. Recommended mounting position is vertical, base down.
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