4682
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BrandPhilips Miniwatt
ClassOutput Pentode
Filament4V @ 1000mA
Construction
Primary Typepentode
Envelopeglass
Sections1
Filament / Heater
Heater NotesIndirect heating, parallel supply
Absolute Maximum Ratings
Plate Voltage375 V
Plate Dissipation9 W
Grid 2 Voltage250 V
Grid 1 Voltage-1.3 V
Cathode Current50 mA
H-C Voltage50 V
Audio Performance
Typical THD1.5%
Power Output19 W
Key Features
- Indirectly heated
- Parallel supply
- Push-pull operation
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class B | 375V | - | - | - | 40mA |
| Class AB | 375V | - | - | - | 48mA |
Application Notes
Operating conditions for push-pull class B and class AB provided.
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