PCF86
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BrandPhilips
ClassCombined TRIODE and high-slope R.F. PENTODE for use as frequency changer in V.H.F. television tuners
BaseNOVAL
Filament9V @ 300mA
Construction
Primary TypeTriode-Pentode
EnvelopeGlass
Sections2
Filament / Heater
Heater NotesIndirect heating by A.C. or D.C.; series supply
Absolute Maximum Ratings
Plate Voltage250 V
Plate Dissipation2 W
Grid 2 Voltage150 V
Cathode Current18 mA
H-C Voltage100 V
Audio Performance
Key Features
- High-slope pentode
- Series supply heater
- Frequency changer application
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Triode section | 100V | 5500 | - | 17 | 14mA |
| Pentode section | 170V | 12000 | 350000 | 70 | 10mA |
| Pentode section as frequency changer | 190V | 4500 | 600000 | - | 8.5mA |
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