| 85 | Electrical machinery and equipment and parts thereof; sound recording and reproducing apparatus, for recording and playback, television image and sound, and parts and accessories |
| 8540 | Tubes & thermionic, cold cathode or a photocathode (example, vacuum or vapor or gas filled lamps and tubes, mercury arc rectifier valves and tubes and cathode ray tubes, television camera tubes) |
| 854079 | Microwave tubes other, excluding lamp with a control grid |
| 85407900 | Microwave tubes other, excluding lamp with a control grid |
| 8540790001 | Klystrons |