Tube-number record
U41
0 archive entries
U41 is a tube type in the TubeDatabase archive (class: Rectifier). Recorded specifications: brand Marconi, year 1952, construction Rectifier, socket Octal, and maximum plate voltage 12500 V. The archive does not yet hold a photographed example of this type.
BrandMarconi
ClassRectifier
BaseOctal
Construction
Primary TypeRectifier
Rectifier TypeDirectly Heated
EnvelopeTubular
SectionsSingle
Filament / Heater
Absolute Maximum Ratings
Plate Voltage12500 V
Cathode Current2 mA
Audio Performance
Key Features
- Directly heated
- High voltage
- International Octal Base
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Single Phase Half Wave Capacitor Input | 12500 V | — | 300000 | — | 2 mA |
| Voltage Doubler (2 valves) | 12500 V | — | 300000 | — | 2 mA |
Application Notes
Mounting: Any position. Switching: Direct.
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