| vacuum tube | Televisions with vacuum tubes are regarded as being behind the times. |
| 真空管 | [真 空 管] vacuum tube #80,946 [Add to Longdo] |
| バルボル | [baruboru] (n) (abbr) valve volt; vacuum tube volt meter [Add to Longdo] |
| 管球 | [かんきゅう, kankyuu] (n) vacuum tube [Add to Longdo] |
| 真空管 | [しんくうかん, shinkuukan] (n) vacuum tube [Add to Longdo] |