| English | eng-000 |
| electron tube amplifier | |
| 普通话 | cmn-000 | 电子管放大器 |
| English | eng-000 | electronic tube amplifier |
| English | eng-000 | thermionic amplifier |
| English | eng-000 | tube amplifier |
| English | eng-000 | vacuum tube amplifier |
| English | eng-000 | vacuum-tube amplifier |
| English | eng-000 | valve amplifier |