8540.12.50.80 - Other

This HTS classification, 8540.12.50.80, pertains to monochrome cathode-ray television picture tubes and video monitor cathode-ray tubes that are not classified under the specific "Projection" category. These are the foundational display devices for older television sets and computer monitors utilizing cathode ray tube technology, displaying images in shades of gray or black and white. The defining characteristic is their reliance on an electron beam striking a phosphor-coated screen to generate an image, and their output being limited to monochrome presentation.

The distinction from its sibling category, 8540.12.50.40 "Projection," is crucial. While both fall under monochrome cathode-ray tubes, "Projection" specifically covers tubes designed for use in projection systems, where the image generated by the tube is optically magnified and projected onto a screen. This subcategory, "Other," encompasses all other monochrome cathode-ray tubes that are not intended for projection, typically meaning they are directly viewed, as in a conventional television or monitor screen.

As this is a leaf node within the HTS classification structure, there are no further subcategories. Therefore, the classification relies on definitively identifying a monochrome cathode-ray tube that does not fall under the projection category. This includes standard cathode-ray tubes for direct viewing in monochrome television receivers and monitors, as well as any specialized monochrome CRT displays not otherwise specified.