|
CV445 / 5J/180E air cooled pentode
|
This valve measures 190x220mm overall, 90x145mm across the anode radiator. It
has a 6 pin base. |
This is an air blast cooled pentode transmitting valve. It has a thoriated
tungsten filament.
| Filament voltage | 9.0V |
| Filament current | 30.0A |
| Max direct anode voltage | 6.0kV |
| Max direct anode current | 2.5A |
| Max anode dissipation | 3.5kW |
| Max direct screen voltage | 1.5kV |
| Max direct screen current | 250mA |
| Mutual conductance * | 6.0mA/V |
| Amplification factor * | 5.0 |
| Max frequency for above ratings | 30MHz |
| Capacitances |
| Cag | 0.6pF |
| Cin | 32.0pF |
| Cout | 21.0pF |
*: measured at Va=6kV, Vg2=1.5kV, Ia=0.5A
| Pin | Function |
| 1 | Suppressor grid |
| 2 | Filament |
| 3 | Screen grid |
| 4 | Filament |
| 5 | Suppressor grid |
| 6 | Control grid |
| - | Anode clamp |
|
|
