Marconi VMS4 tetrode
 |
This valve measures 140x45mm
overall and has a 5 pin base. |
See also the VMS4B
Catkin.
| Heater voltage |
4V |
| Heater current |
1A |
| Max anode voltage |
20V |
| Max screen voltage |
70V |
| Amplification factor * |
500 |
| Mutual conductance * |
1.1mA/V |
*: At Va=200, Vg2=60, Vg1=-0.5
| Pin |
Function |
| 1 |
Screen grid |
| 2 |
Heater |
| 3 |
Control grid |
| 4 |
Heater |
| 5 |
Cathode |
| TC |
Anode |
|
 |
