CV2479 noise tube
 |
This valve measures 166x15mm overall |
This is a gas filled, low current noise tube.
| Heater voltage | 6.3V |
| Heater current | 1.0A |
| Max striking voltage (in mount) | 1150V |
| Normal voltage drop across valve * | 50V |
| Preferred operating current | 35mA |
| Min operating current | 25mA |
| Max operating current | 50mA |
| Min series resistance | 1500 ohms |
| Nominal noise power available ** | 15.25dB |
| Nominal noise power output change *** with current | 0.03dB/mA |
| Useful frequency range | 9GHz to 18GHz |
*: The value quoted is that which is obtained with Ia = 35mA. It is essential that the energy available for striking the tube exceeds the minimum value of 2 x 10-3 joules.
**: Given as a reference to thermal noise at 17°C.
***: The EVS sheet says 'charge' here but change sounds more likely.
The heater/cathode connection is indicated by a white spot.
