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PSVane Art KT150 is a high-end tetrode power tube with 70W plate dissipation. It is the most powerful tube in the 6550/KT88/KT90/KT120 family, developed to improve heat dissipation and ensure optimal sound performance. It is extremely reliable and guarantees a long life. A pair of KT-150 in push-pull mode can deliver power levels approaching 300W. The ovoid enclosure cancels out any microphonic problems. The tubes are sold here quad matched, to ensure optimal performance.

Technical characteristics
| Specifications | |
|---|---|
| Product type | Power tube | 
| Tube type | Tetrode | 
| Number of pins | 7 | 
| Caractéristique | Ovoid | 
| INTER-ELECTRODE CAPACITANCES | |
|---|---|
| Grid 1 to plate | 1.75pF | 
| Input | 20.5pF | 
| Output | 10pF | 
| MAX CHARACTERISTICS | |
|---|---|
| Plate voltage | Tetrode : 850V Triode : 650V  | 
| Grid 2 voltage | Pentode connection : 650V Triode & ultralinear connection : 600V  | 
| Grid 1 voltage | -200V | 
| Plate dissipation | 70W | 
| Grid 2 dissipation | 9W | 
| Cathode current | Pentode connection: 275mA Triode & ultralinear connection : 250mA  | 
| Grid 1 circuit resistance | Fixed Bias : 51,000Ω Self Bias : 240,000Ω  | 
| Bulb temperature | 250°C |