Doppeldiode
| Endpentode
| Doppeldiode | |
| el. | diode double; double diode |
| Endpentode | |
| antenn. | penthode de sortie |
| |||
| diode double; double diode | |||
|
Doppeldiode : 4 phrases in 1 subject |
| Antennas and waveguides | 4 |