EL 11
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BrandPhilips
ClassOutput Pentode
Construction
Primary TypePentode
EnvelopeGlass
Filament / Heater
Heater Notesindirect by A.C.; parallel supply
Absolute Maximum Ratings
Plate Voltage250 V
Plate Dissipation9 W
Grid 2 Voltage275 V
Grid 1 Voltage-1.3 V
Cathode Current55 mA
H-C Voltage50 V
Audio Performance
Typical THD10%
Power Output4.5 W
Key Features
- Indirectly heated
- Parallel supply
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class A | 250V | 9000 | 50000 | 25 | 36mA |
| Class AB | 250V | - | - | - | 48mA |
Application Notes
Operating characteristics provided for Class A and Class AB operation. Maximum ratings specified for both static and dynamic conditions.
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