|
| 47140 | Carcinotrons | |
| 47140 | Cells, photoemissive, vacuum or gas-filled | |
| 47140 | Emitrons, cathode-potential-stabilized | |
| 47140 | Gauges, ionization | |
| 47140 | Iconoscopes | |
| 47140 | Ignitrons | |
| 47140 | Image converters | |
| 47140 | Image iconoscopes | |
| 47140 | Image orthicons | |
| 47140 | Kenotrons | |
| 47140 | Kinescopes | |
| 47140 | Klystrons | |
| 47140 | Lighthouse valves, sealed-disc | |
| 47140 | Magic eyes | |
| 47140 | Magnetrons | |
| 47140 | Orthicons | |
| 47140 | Phanotrons | |
| 47140 | Phototubes, gas or vacuum | |
| 47140 | Rectifying valves and tubes, mercury arc or vapour | |
| 47140 | Strobotrons | |
| 47140 | Thyratrons | |
| 47140 | Tubes for television cameras | |
| 47140 | Tubes, amplifier, electronic | |
| 47140 | Tubes, backward-wave | |
| 47140 | Tubes, cathode-ray (excl. X-ray and television picture tubes) | |
| 47140 | Tubes, cathode-ray, for colour video monitors | |
| 47140 | Tubes, cathode-ray, monochrome video monitors | |
| 47140 | Tubes, electron, cold cathode (excl. X-ray tubes) | |
| 47140 | Tubes, electronic, rectigon | |
| 47140 | Tubes, hyperfrequency | |
| 47140 | Tubes, image converter or intensifier | |
| 47140 | Tubes, image dissector | |
| 47140 | Tubes, microwave, electronic | |
| 47140 | Tubes, photocathode | |
| 47140 | Tubes, photoemissive | |
| 47140 | Tubes, photomultiplier | |
| 47140 | Tubes, picture, cathode-ray, for colour televisions | |
| 47140 | Tubes, picture, cathode-ray, for monochrome televisions | |
| 47140 | Tubes, radio | |
| 47140 | Tubes, receiver, electronic | |
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