D2F
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BrandPhilips
ClassPower Pentode
BaseRadial arrangement
Construction
Primary TypePentode
EnvelopeGlass
SectionsSingle
Filament / Heater
MaterialDirectly heated
Absolute Maximum Ratings
Plate Voltage250 V
Plate Dissipation1.8 W
Grid 2 Voltage250 V
Cathode Current20 mA
Audio Performance
Typical THD2.5%
Power Output3.5 W
Key Features
- Small size
- Robust construction
- Light weight
- Operates down to 3 metres
- Hand grip (D2F version)
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Pentode | 250V | 3400 | 50000 | - | 10mA |
Application Notes
Specifically designed for portable transceivers; usable in every stage of a transceiver. D12F is the version without the hand grip.
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