Brimar 9D6 / CV131 / W77 HF vari-µ pentode
 |
This valve measures 54x17mm and has a B7G base |
See also CV2023 which is a modified version.
| Heater voltage | 6.3V |
| Heater current | 0.2A |
| Max operating anode voltage | 300V |
| Max anode voltage (Ia=0) | 500V |
| Max operating screen voltage | 300V |
| Max anode dissipation | 3W |
| Max screen dissipation | 0.7W |
| Mutual conductance (Va=250; Vg2=200; Vg1=-2.5) |
2.5mA/V |
| Pin | Function |
| 1 | Control grid |
| 2 | Cathode |
| 3 | Heater |
| 4 | Heater |
| 5 | Anode |
| 6 | Suppressor grid + shield |
| 7 | Screen grid |
