CV3789 triode
 |
This valve measures 41x19mm
overall and has a B9A base with gold plated pins. |
The prototype of this valve
is 5842 or 417A (not the klystron!)
| Heater voltage |
6.3V |
| Heater current |
300mA |
| Max anode voltage |
200V |
| Max negative grid voltage |
-20V |
| Max anode dissipation |
4.5W |
| Max cathode current |
38mA |
| Max heater cathode voltage |
55V |
| Max bulb temperature |
160C |
| Mutual conductance * |
25mA/V |
| Noise factor at 45MHz
* |
2db |
| Noise factor at 400MHz
* |
8db |
*: At Va=150, Vg=-1.5, Rk=60
ohms, Ia=25mA
| Pin |
Function |
| 1 |
Anode |
| 2 |
i/c |
| 3 |
Heater |
| 4 |
Grid |
| 5 |
Grid |
| 6 |
Cathode |
| 7 |
Grid |
| 8 |
Grid |
| 9 |
Heater |
|
 |
