| English | eng-000 |
| directly heated cathode | |
| 普通话 | cmn-000 | 灯丝 |
| 普通话 | cmn-000 | 直热式阴极 |
| English | eng-000 | electron-tube heater |
| English | eng-000 | filament |
| English | eng-000 | filament-type cathode |
| English | eng-000 | filamentary cathode |
| English | eng-000 | lamp filament |
| русский | rus-000 | катод прямого накала |