UY85
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BrandPhilips
ClassRectifier
BaseNoval
Filament38V @ 100mA
Construction
Primary TypeVacuum
Rectifier TypeHalf-wave
EnvelopeGlass
Sections1
Filament / Heater
Heater NotesIndirect heating by A.C. or D.C.; series supply
Absolute Maximum Ratings
Plate Voltage700 V
Cathode Current110 mA
H-C Voltage550 V
Audio Performance
Key Features
- High-vacuum
- Half-wave rectifier
- Indirectly heated
- Series supply
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| RMS Supply Voltage 110V | 110V | - | - | - | 110mA |
| RMS Supply Voltage 127V | 127V | - | - | - | 110mA |
| RMS Supply Voltage 220V | 220V | - | - | - | 110mA |
| RMS Supply Voltage 250V | 250V | - | - | - | 110mA |
Application Notes
Operating characteristics specified for 100uF filter capacitor and protective resistance (Rt) ranging from 0 to 100 Ohms.
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