EL41
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BrandMullard
ClassOutput Pentode
BaseB8A
Filament6.3V @ 0.7mA
Construction
Primary TypePentode
EnvelopeGlass
SectionsSingle
Filament / Heater
Absolute Maximum Ratings
Plate Voltage300 V
Plate Dissipation9 W
Grid 2 Voltage300 V
Grid 1 Voltage-1.3 V
Cathode Current55 mA
H-C Voltage50 V
Audio Performance
Typical THD11.5%
Power Output4.5 W
Key Features
- 9W anode dissipation
- Primarily intended for use in A.C. mains operated equipment
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Single Valve Class A Pentode | 250V | 10000 | 40000 | 22 | 36mA |
| Single Valve Class A Triode | 250V | - | 3500 | - | 33mA |
| Two Valves Push-Pull Pentode | 300V | - | - | - | 60mA |
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