4104-D
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BrandStandard Valves
ClassTriode
BaseMedium 4-pin bayonet thrust
Construction
Primary TypeTriode
EnvelopeGlass
SectionsSingle
Filament / Heater
MaterialOxide coated
Absolute Maximum Ratings
Plate Voltage160 V
Plate Dissipation5 W
Audio Performance
Key Features
- Oxide coated filament
- Constant current type filament
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Constants at 20 mA plate current | - | 1150 | 2000 | 2.3 | 20mA |
| Typical Operation 1 | 130V | - | 1900 | - | 31.3mA |
| Typical Operation 2 | 130V | - | 2000 | - | 25.2mA |
| Typical Operation 3 | 130V | - | 2100 | - | 20.5mA |
| Typical Operation 4 | 160V | - | 1900 |
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