EZ81
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BrandPhilips
ClassFull-wave Vacuum Rectifier
BaseNoval
Filament6.3V @ 1mA
Construction
Primary TypeDouble Anode Rectifier
Rectifier TypeFull-wave
EnvelopeGlass
Base MaterialGlass
Sections2
Filament / Heater
Heater NotesIndirect heating by A.C., parallel supply
Absolute Maximum Ratings
Plate Voltage450 V
Cathode Current160 mA
H-C Voltage500 V
Audio Performance
Key Features
- High vacuum
- Double anode
- Indirectly heated
- Noval base
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Capacitor input filter | 250V | - | 150 | - | 160mA |
| Capacitor input filter | 350V | - | 250 | - | 150mA |
| Capacitor input filter | 450V | - | 310 | - | 100mA |
| Choke input filter | 250V | - | - | - | 180mA |
| Choke input filter | 350V | - | - |
Application Notes
The EZ81 is designed for use as a full-wave rectifier in radio receivers and audio amplifiers. It supports both capacitor and choke input filter configurations.
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