PX25
| Maximum Plate Voltage | 500 V |
| Maximum Plate Current | 90 mA |
| Plate Dissipation | 30 Watts |
| Va | 400 V |
| Ia | 63 mA |
| Vg | -31 V |
| Transconductance | 7.4 mA/V |
| Amplification Factor | 9.5 |
| Filament Voltage | 4 V (DC/AC) |
| Filament Current | 1.8 A |
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