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Concept Schemes Documentation

Thermionic, cold cathode or photo-cathode valves and tubes (including cathode ray tubes)

Hierarchy >> BONSAI-flowobject-2025.1 >> industry product, total >> Metal products, machinery and ... >> Radio, television and communic... >> Electronic valves and tubes; e... >> Thermionic, cold cathode or ph...

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Definition

No definition available

Concept Hierarchy

Broader Concepts 1

Thermionic, cold cathode or photo-cathode valves and tubes (including cathode ray tubes)
fi_4714
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Current Concept

Narrower Concepts 8

Tubes; cathode-ray television picture tubes, including video monitor cathode-ray tubes, colour
fi_8540_11
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Tubes; cathode-ray television picture tubes, including video monitor cathode-ray tubes, monochrome
fi_8540_12
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Tubes; data/graphic display tubes, monochrome; data/graphic display tubes, colour, with a phosphor dot screen pitch smaller than 0.4mm
fi_8540_40
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Other cathode-ray tubes
fi_8540_60
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Tubes; microwave, magnetrons, excluding grid-controlled tubes
fi_8540_71
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Tubes; microwave (for example klystrons, travelling wave tubes, carlinotrons), excluding magnetrons and grid-controlled tubes
fi_8540_79
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Valves and tubes; receiver or amplifier
fi_8540_81
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Valves and tubes; n.e.c. in heading no. 8540
fi_8540_89
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Associations

Thermionic, cold cathode or photo-cathode valves and tubes (including cathode ray tubes)

Notes

History Notes

Concept Information

IRI

https://glossary.bon...ject-2025.1/fi_47140

Notation

fi_47140

Status

Accepted

Concept Schemes

https://glossary.bonsai.uno/BONSAI-flowobject-2025.1

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