Duodiode
| Pentode
| Duodiode | |
| gen. | double diode |
| meas.inst. | twin diode |
| Pentode | |
| phys. | five-electrode tube; pentode tube; three-grid valve |
| tech. | three-grid tube |
| |||
| double diode | |||
| twin diode (mit gemeinsamer Katode) | |||
| duodiode; twin diode | |||
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Duodiode : 3 phrases in 1 subject |
| Technology | 3 |