Tube-number record
2A3-40
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BrandJJ Electronic
ClassAudio Power Triode
Base4-pin
Construction
Primary TypeTriode
EnvelopeGlass
SectionsSingle
Filament / Heater
Absolute Maximum Ratings
Plate Voltage450 V
Plate Dissipation40 W
Cathode Current100 mA
Audio Performance
Key Features
- Moderate power filamentary triodes
- Class A service
- Ceramic base
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class A characteristic | 250 V | 5250 | 800 | 4.2 | 60 mA |
Application Notes
Filamentary triodes designed for Class A service.
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