Tube-number record
DYNAMIC COUPLED POWER AMPLIFIER
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BrandTUNG-SOL
ClassPower Triode
Base6-pin
Filament25 V @ 0.3 mA
Construction
Primary TypeTriode
EnvelopeGlass
Base MaterialPhenolic
Sections2
Filament / Heater
Heater NotesAC or DC
Absolute Maximum Ratings
Plate Voltage180 V
Audio Performance
Typical THD9%
Power Output3.8 W
Key Features
- Dynamically Coupled Triodes
- Line Potential Cathodes
- Internal Biasing
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class A1 Amplifier (110V) | 110 V | 2200 | — | 25 | 45 mA |
| Class A1 Amplifier (180V) | 180 V | 2400 | — | 35 | 46 mA |
Application Notes
Designed for service in the power output stage of AC-DC receivers. Both plates may be operated at 180 volts if the grid is biased to -20 volts.
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