SV811-10
0 Tubes in archive
BrandSvetlana
ClassLow-Mu Power Triode
BaseSvetlana SK4 or equivalent
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 Output13.4 W
Key Features
- Directly heated thoriated tungsten filament
- Hard glass envelope with 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 A Single Tube | 450V | 3800 | 2500 | 10 | 80mA |
| Class A Single Tube | 800V | 3800 | 2500 | 10 | 80mA |
| Class A Two Tubes | 450V | - | - | 10 | 150mA |
| Class A Two Tubes | 800V | - | - | 10 | 150mA |
Application Notes
Intended for use in class A, AB, or B audio amplifiers. Operating position vertical (base down) or horizontal with pins 1 and 4 in vertical plane.
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