PCL85
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BrandPhilips
ClassTriode-Pentode
BaseNOVAL
Filament17.5V @ 300mA
Construction
Primary TypeTriode-Pentode
EnvelopeGlass
Sections2
Filament / Heater
Heater NotesIndirect by A.C. or D.C.; series supply
Absolute Maximum Ratings
Plate Voltage250 V
Plate Dissipation7 W
Grid 2 Voltage250 V
Cathode Current75 mA
H-C Voltage200 V
Audio Performance
Key Features
- Indirectly heated
- Series supply
- Triode-Pentode combined
- Frame output tube
- Frame oscillator
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Pentode Section | 50V | - | - | - | 200mA |
| Triode Section | 100V | 5500 | 11000 | 60 | 5mA |
Application Notes
Designed for use as frame output tube and frame oscillator or pulse amplifier in television receivers. Minimum peak plate current derived from spread and deterioration factors is noted for circuit design reliability.
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