Tube-number record
L63
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BrandMarconi
ClassTriode
BaseOctal
Filament6.3 V @ 300 mA
Construction
Primary TypeTriode
EnvelopeTubular
Filament / Heater
Heater NotesIndirectly heated
Absolute Maximum Ratings
Plate Voltage250 V
Plate Dissipation2.5 W
Audio Performance
Typical THD2%
Key Features
- 6.3V Indirectly Heated
- Triode
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Characteristics | 250 V | 2600 | 7700 | 20 | — |
| Typical Operation | 250 V | — | — | 16 | 3.2 mA |
Application Notes
View from underside of base for International Octal connections.
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