CV303 variable-µ HF
pentode
 |
This valve measures 78x32mm
overall and has an 8 pin base. |
| Heater voltage |
6.3V |
| Heater current |
200mA |
| Max anode voltage, Ia=0 |
550V |
| Max anode voltage |
300V |
| Max cathode current |
10mA |
| Max anode dissipation |
2W |
| Max screen voltage, Ia<3mA |
300V |
| Mutual conductance * |
2.2mA/V |
| Internal resistance * |
1.2M ohms |
| Max screen dissipation |
300mW |
| Capacitances |
| Cag |
<0.002pF |
| Cae |
6.4pF |
| Cg1e |
5.5pF |
| Cg1h |
<0.004pF |
*: At Va=250, Vg2=100, Vg1=-2.5,
Ia=6.0mA
| Pin |
Function |
| 1 |
Heater |
| 2 |
Anode |
| 3 |
Screen grid |
| 4 |
Suppressor grid and shield |
| 5 |
n/c |
| 6 |
Control grid |
| 7 |
Cathode |
| 8 |
Heater |
| Spigot |
Metal shell |
|
 |
