18014
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BrandPhilips
ClassPentode
Filament-V @ 1mA
Construction
Primary TypePentode
EnvelopeGlass
Filament / Heater
Heater NotesIndirect heating by A.C. or D.C.; parallel supply
Absolute Maximum Ratings
Plate Voltage220 V
Plate Dissipation7 W
Grid 2 Voltage220 V
Grid 1 Voltage-1.3 V
Cathode Current50 mA
H-C Voltage50 V
Audio Performance
Typical THD3%
Power Output0.8 W
Key Features
- For use in telephone equipment
- Indirectly heated
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Typical characteristics | 200V | 8000 | 50000 | 20 | 35mA |
| Pre-amplifier | 200V | 8000 | 50000 | - | 35mA |
| Output valve | 200V | 8000 | 50000 | - | 35mA |
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