Tube-number record
L63
0 archive entries
L63 is a tube type in the TubeDatabase archive (class: Triode). Recorded specifications: brand Marconi, year 1952, construction Triode, socket Octal, maximum plate voltage 250 V, and maximum plate dissipation 2.5 W. The archive does not yet hold a photographed example of this type.
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
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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