| Triode | Nominativ, Singular | nominative case, singular | |
| Triode | Genitiv, Singular | genitive case, singular | |
| Triode | Dativ, Singular | dative case, singular | |
| Triode | Akkusativ, Singular | accusative case, singular | |
| Trioden | Nominativ, Plural | nominative case, plural | |
| Trioden | Genitiv, Plural | genitive case, plural | |
| Trioden | Dativ, Plural | dative case, plural | |
| Trioden | Akkusativ, Plural | accusative case, plural |