Philips EE50 secondary emission valve
 |
This valve measures 72x37mm
overall and has a B9D base. |
This is a secondary emission
valve designed for amplification of very wide modulation bands, for example
for TV use. It uses secondary emission to increase mutual conductance.
| Heater voltage |
6.3V |
| Heater current |
300mA |
| Max anode voltage |
250V |
| Max screen voltage |
250V |
| Max anode current |
10mA |
| Max screen current |
0.6mA |
| Max anode dissipation |
2.5W |
| Typical secondary cathode
voltage |
150V |
| Typical secondary cathode
current |
-8mA |
| Mutual conductance (values
as above with G1 at -3V) |
14mA/V |
| Capacitances |
| Ca |
7.7pF |
| Cg1 |
7.7pF |
| Cag1 |
<0.005pF |
| Pin |
Function |
| 1 |
Heater |
| 2 |
Secondary cathode |
| 3 |
Anode |
| 4 |
Screen grid |
| 5 |
Shield |
| 6 |
Cathode |
| 7 |
Control grid |
| 8 |
Shield |
| 9 |
Heater |
|
