CV1905 transmitting tetrode
 |
This valve measures 111x56mm overall and has a 7 pin base (5 fitted). |
This is the CV equivalent of the 4-65A.
| Filament voltage | 6V |
| Filament current | 3.5A |
| Max anode voltage | 3kV |
| Max anode current | 150mA |
| Max screen voltage | 400V |
| Max anode dissipation | 80W |
| Max screen dissipation | 10W |
| Max grid dissipation | 5W |
| Mutual conductance (Va=500, Vg2=250, Ia=125mA) | 4.0mA/V |
| Inner amplification factor | 6.0 |
| Max frequency for full rating | 150MHz |
| Max bulb temperature | 225C |
| Capacitances | |
| Cag | 0.12pF |
| Cge | 7.15pF |
| Cae | 2.25pF |
| Pin | Function |
| 1 | Filament |
| 2 | Screen grid |
| 3 | no pin |
| 4 | Control grid |
| 5 | no pin |
| 6 | Screen grid |
| 7 | Filament |
| TC | Anode |
