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CV477 pentode
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This valve measures 35x10mm overall and has a B8D/F base |
| Heater voltage | 6.3V |
| Heater current | 150mA |
| Max operating anode voltage | 165V |
| Max operating screen voltage | 155V |
| Max anode dissipation | 750mW |
| Max screen voltage | 350mW |
| Max cathode current | 16.5mA |
| Max heater-cathode voltage | 200V |
| Mutual conductance * | 4.5mA/V |
| Anode impedance * | 175k ohms |
| Capacitances (measured with close fitting metal shield |
| Cin (nom) | 4.3pF |
| Cout (nom) | 3.4pF |
| Ca,g1 (max) | 0.015pF |
*: At Va=Vg2=100, Vg1=-10 (Ia=7.2mA approx, Ig2=2.0mA approx)
| Lead | Function |
| 1 | Control grid |
| 2 | Cathode + suppressor grid |
| 3 | Heater |
| 4 | Cathode + suppressor grid |
| 5 | Anode |
| 6 | Heater |
| 7 | Screen grid |
| 8 | Cathode + suppressor grid |
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