8540.12.50 - Non-high definition

This HTS category, 8540.12.50, specifically covers monochrome cathode-ray television picture tubes and video monitor cathode-ray tubes that are *not* high definition. These are analog display devices where an electron beam scans across a phosphor-coated screen to create images. The key defining characteristic for this classification is the absence of the technological sophistication and resolution typically associated with high-definition displays.

Distinguishing this category from its sibling, 8540.12.70, is crucial. While both fall under monochrome cathode-ray tubes, 8540.12.70 is reserved for high-definition variants, implying a higher pixel count, greater refresh rates, and advanced signal processing. Therefore, classification under 8540.12.50 is reserved for older or simpler CRT displays that do not meet the technical specifications for high definition.

Within this category, further subdivisions exist to refine the classification of non-high definition monochrome cathode-ray tubes. The subcategory 8540.12.50.40 is designated for "Projection" tubes, which are a specific type of CRT designed for projecting images onto a larger screen. The remaining tubes of this type are classified under 8540.12.50.80, as "Other" non-high definition monochrome cathode-ray tubes.