4019-A
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BrandStandard Valves
ClassTriode
BaseMedium 4-pin bayonet thrust
Construction
Primary TypeTriode
EnvelopeGlass
Filament / Heater
MaterialOxide coated
Absolute Maximum Ratings
Plate Voltage190 V
Audio Performance
Key Features
- Oxide coated filament
- Constant current type
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Nominal | 130V | 1270 | 5500 | 7 | 6.8mA |
| Typical Operation 1 | 130V | - | 4800 | - | 9.7mA |
| Typical Operation 2 | 160V | - | 4700 | - | 9.8mA |
| Typical Operation 3 | 190V | - | 4900 | - | 9.7mA |
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