Description
PSVANE Art KT66-TIII Vacuum Tube
The PSVANE Art KT66-TIII stands out with its special shaped balloon glass envelope, engineered to improve thermal dissipation, and maintain a superior vacuum for enhanced sound quality. This beam power tetrode delivers powerful, tube-untypical bass, making it an outstanding choice for audiophiles and professional users alike. With advanced ceramics and anode technology, this tube offers a significant boost in power and stability, perfect for demanding audio applications.
The Art KT66-TIII is known for its powerful output and exceptional low-frequency performance, offering a rich and deep sound quality. It presents a warm and full audio experience, showcasing profound musical expressiveness.
Technical Specifications
Filament Voltage and Current
- UH: 6.3 V
- IH: 1.27 A
Maximum Ratings
| Parameter | Tetrode Mode | Triode Mode |
|---|---|---|
| Anode Voltage (Ua) | 500 V | 400 V |
| Anode Dissipation Power (Pa) | 25 W | 25 W |
| Second Grid Voltage (Ug2) | 400 V | – |
| Second Grid Dissipation Power (Pg2) | 3.5 W | – |
| Cathode Current (Ik) | 200 mA | – |
| Heater-to-Cathode Voltage (Uhk) | ±100 V | – |
Grid 1 Resistance
- Self-Bias: 0.5 MΩ
- Fixed Bias: 0.1 MΩ
Inter-Electrode Capacitance
| Parameter | Tetrode Mode | Triode Mode |
|---|---|---|
| Input Capacitance | 16 pF | 8.7 pF |
| Output Capacitance | 11.5 pF | 15.8 pF |
| Cross-Coupling Capacitance | 1.1 pF | 7.2 pF |
Static Parameters
| Parameter | Value |
|---|---|
| Anode Voltage (Ua) | 250 V |
| Second Grid Voltage (Ug2) | 250 V | First Grid Voltage (Ug1) | -15 V |
| Anode Current (Ia) | 85 mA |
| Second Grid Current (Ig2) | 6.3 mA |
| Transconductance (Gm) | 7 mA/V |
| Internal Resistance (ri) | 22.5 kΩ |
| Load Resistance (RL) | 2.2 kΩ |
| Output Power (Pout) | 7.25 W |
| Total Harmonic Distortion (Dtot) | 9.0 % |
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