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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

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Capacitor input filter250V-150-160mA
Capacitor input filter350V-250-150mA
Capacitor input filter450V-310-100mA
Choke input filter250V---180mA
Choke input filter350V---180mA
Choke input filter450V---150mA

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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