LOW-MU POWER TRIODE
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BrandSvetlana
ClassPower Triode
BaseSvetlana SK4
FilamentV @ mA
Construction
Primary TypeTriode
EnvelopeHard glass
Base MaterialCeramic
SectionsSingle
Filament / Heater
MaterialThoriated-tungsten
Absolute Maximum Ratings
Plate Voltage800 V
Plate Dissipation65 W
Cathode Current160 mA
Audio Performance
Typical THD1%
Power Output15.4 W
Key Features
- Directly heated thoriated tungsten filament
- Hard glass envelope
- White ceramic base
- Low microphonic internal construction
- Titanium gettering system
- Tri-plate anode
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class A1 | 450V | 1700 | 2000 | 3.5 | 80mA |
| Class A1 | 800V | 1700 | 2000 | 3.5 | 80mA |
| Class AB1 Push-Pull | 750V | - | - | - | 150mA |
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