CV9933 special quality pentode
 |
This valve measures 65x19mm overall and has a B9A base with gold plated pins. |
This valve is aimed at telephone service and has a life expectancy in excess of 10,000 hours.
| Heater voltage | 6.3V |
| Heater current | 300mA |
| Typical operating conditions | |
| Anode voltage | 210V |
| Screen voltage | 120V |
| Anode current | 10mA |
| Screen current | 2.1mA |
| Mutual conductance | 9mA/V |
| Anode impedance | 500k ohms |
| Ampification factor | 38 |
| Pin | Function |
| 1 | Screen grid |
| 2 | Control grid |
| 3 | Cathode |
| 4 | Heater |
| 5 | Heater |
| 6 | Anode |
| 7 | i/c |
| 8 | i/c |
| 9 | Suppressor grid and internal shield |
