SP4 pentode
 |
This valve measures approximately 141x45mm overall and has a B7 base |
| Heater voltage |
4V |
| Heater current |
1.1A |
| Max anode voltage |
200V |
| Max screen voltage |
100V |
| Mutual conductance * |
2.3mA/V |
| Anode impedance * |
2.2M ohms |
| Capacitances |
| Cag |
0.004pF |
| Cae |
14pF |
| Cge |
14pF |
*: At Va=200V, Vg2=100V, Vg1=-2V.
| Pin |
Function |
| 1 |
Metallising |
| 2 |
Control grid |
| 3 |
Suppressor grid |
| 4 |
Heater |
| 5 |
Heater |
| 6 |
Cathode |
| 7 |
Screen grid |
| TC |
Anode |
|
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