Tube-number record
N41
0 archive entries
N41 is a tube type in the TubeDatabase archive (class: Power Pentode). Recorded specifications: brand OSRAM, construction Pentode, socket 7-pin (non-miniature), maximum plate voltage 250 V, and maximum plate dissipation 8 W. The archive does not yet hold a photographed example of this type.
BrandOSRAM
ClassPower Pentode
Base7-pin (non-miniature)
Filament4 V @ 2 mA
Construction
Primary TypePentode
EnvelopeGlass, carbonised bulb
SectionsSingle
Filament / Heater
Heater NotesIndirectly Heated Cathode
Absolute Maximum Ratings
Plate Voltage250 V
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Power Amplifier | 250 V | 10000 | — | — | 32 mA |
Application Notes
A grid stopping resistance is recommended, but the total resistance in the grid circuit should in no case exceed 500,000 ohms. Type N41 should only be employed with full automatic grid bias.
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