2611 Manufacture of electronic components

261111 Cathode-ray television picture tubes/ television camera tubes/ other cathode-ray tubes 261112 Magnetrons, klystrons, microwave tubes and other valve tubes 261121 Diodes/ transistors/ thyristors, diacs and triacs 261122 Semiconductor devices/ light-emitting diodes/ mounted piezo-electric crystals/ parts thereof 261130 Electronic integrated circuits 261140 Parts of electronic valves and tubes and of other electronic components n.e.c.