CV484 / 3S4 power amplifier pentode
 |
This valve measures 54x17mm overall and has a B7G base. |
See also CV820 which also carries the 3S4 marking.
| Filament voltage | 1.4/2.8V |
| Filament current | 100/50mA |
| Max anode voltage | 100V |
| Max screen voltage | 75V |
| Mutual conductance * | 1.5mA/V |
| Anode impedance * | 100k ohms |
| Screen current * | 1.4mA |
| Max cathode current | 13.0mA |
| Pin | Function |
| 1 | Filament -ve ** |
| 2 | Anode |
| 3 | Control grid |
| 4 | Screen grid |
| 5 | Suppressor grid, filament centre tap ** |
| 6 | Anode |
| 7 | Filament +ve |
