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S Serie Tubes for Preamplifier / Phono Stage (Matched Pair)
The Psvane 12AT7-S tubes offer high plate current and low noise, making them particularly recommended for use in a preamplifier or phono stage. This model has the same characteristics as its predecessor while incorporating improvements in its internal structure to achieve even better performance.
These tubes are sold in pairs and are factory-matched to ensure optimal electrical and sonic performance.
| Specifications | |
|---|---|
| Product type | Tubes |
| Quantity | Matched pair |
| Heater | |
|---|---|
| Uf | In parallel : 6.3V In series : 12.6V |
| If | In parallel : 0.3A In series : 0.15A |
| Static parameters | |
|---|---|
| Ua | 100 - 250V |
| Ia | 3.7 - 10mA |
| Gm | 4 - 5.5mA/V |
| u | 60 - 60 |
| ri (approx) | 15 - 10.9KΩ |
| Ug (approx) | -5 - -12V |
| Class A1 max, Single triode | |
|---|---|
| Ua | 300V |
| Pa | 2.5W |
| Ik(max) | 20mA |
| Ug | 50V |
| Uh-k(pk) | +-200V |
| Rg | |
|---|---|
| With cathode bias | 1MΩ |
| With fixed bias | 0.25MΩ |
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