|
CV2666
double beam tetrode
|
This
valve measures 107x55mm overall and has a 7 pin B7A base. |
This is an RF double beam tetrode based on the 829B.
| Heater
voltage (centre tapped 12.6V heater) |
6.3V |
| Heater
current |
2.25A |
| Max
anode voltage (with forced air cooling) |
750V |
| Max
grid voltage |
-175V |
| Max
grid current |
7.5mA |
| Max
screen grid voltage |
225V |
| Max
anode dissipation |
20W |
| Max
screen dissipation |
6.5W |
| Mutual
conductance * |
1.9mA/V |
| Anode
impedance * |
67k
ohms |
| Inner µ (g1 - g2) * |
5.6 |
| Max frequency at full ratings |
200MHz |
| Max frequency at half ratings |
300MHz |
| Capacitances (each section) |
| Cag max |
0.12pF |
| Cge
nom |
13.75pF |
| Cae nom |
6.95pF |
| Cg2c max |
65pF |
*: At Va=300, Vg2=250, Ia=25mA
| Pin |
Function |
| 1 |
Heater |
| 2 |
Control grid " |
| 3 |
Screen grids |
| 4 |
Cathode + beam plates |
| 5 |
Heater centre tap |
| 6 |
Control grid ' |
| 7 |
Heater |
| TC1 |
Anode ' |
| TC2 |
Anode " |
|
