|
CV785 / 1T4 variable-µ HF
pentode
 |
This valve measures
52x17mm overall and has a B7G base. |
| Filament
voltage |
1.4V |
| Filament
current |
50mA |
| Max anode
voltage |
100V |
| Max screen
voltage |
75V |
| Mutual conductance
* |
0.9mA/V |
| Anode impedance
* |
500k ohms |
| Anode current
* |
3.5mA |
| Max cathode
current |
6.5mA |
| Capacitances
(with close fitting shield conected to fil -ve) |
| Cag max |
0.01pF |
| Cae |
7.5pF |
| Cge |
3.6pF | *: At Va=90, Vg2=67.5; Vg1=0
| Pin |
Function |
| 1 |
Filament -ve,
suppressor grid, shield |
| 2 |
Anode |
| 3 |
Screen
grid |
| 4 |
n/c |
| 5 |
Filament -ve,
suppressor grid, shield |
| 6 |
Control
grid |
| 7 |
Filament
+ve | |
 |
