ATS25 beam tetrode
 |
This valve measures 145x50mm
overall and has a 5 pin base. |
The prototype of this valve
is the 807. The CV sheet (CV1374 is equivalent)
is marked as obsolete in 1946.
| Heater voltage |
6.3V |
| Heater current |
900mA |
| Max anode voltage |
600V |
| Max screen voltage |
300V |
| Max anode dissipation |
25W |
| Max screen dissipation |
3.5W |
| Mutual conductance (At
Va=200, Vg2=250, Ia=83mA, Vg1=-12.5) |
7.1mA/V |
| Max signal DC |
120mA |
| Capacitances |
|
| Cae |
8.2pF |
| Cge |
12.5pF |
| Cag |
0.2pF |
| Pin |
Function |
| 1 |
Heater |
| 2 |
Screen grid |
| 3 |
Control grid |
| 4 |
Cathode and beam plates |
| 5 |
Heater |
| TC |
Anode |
|
 |
