… or vapour or gas filled valves and tubes, mercury arc rectifying valves and tubes, cathode-ray tubes, television …
Explanatory notes
… or vapour or gas filled valves and tubes, mercury arc rectifying valves and tubes, cathode-ray tubes, television … ‑ Cathode‑ray television picture tubes, including video monitor cathode‑ray tubes : 8540.11 ‑ ‑ … - Microwave tubes (for example, magnetrons, klystrons, travelling wave tubes, carcinotrons), excluding …