Definition

Noun: - A type of cathode-ray tube used in color television sets that produces a full range of colors by combining light from three primary-colored phosphor dots (red, green, and blue).

Usage

The term "tricolor tube" specifically refers to the core imaging component in older color television sets and computer monitors. - The technician replaced the faulty tricolor tube to restore the picture on the vintage TV. - Modern flat-screen displays have largely replaced the bulky tricolor tube.

Advanced Usage

• Technical Context: In engineering and electronics, the term describes the specific CRT (cathode-ray tube) technology that uses a shadow mask or aperture grille to align three separate electron beams, each exciting a different colored phosphor.
  • The design of the tricolor tube was a major breakthrough for color broadcasting.

Variants and Related Words

• Color CRT: A more general term for any cathode-ray tube capable of displaying color images.
• Shadow mask tube: A common type of tricolor tube.
• Aperture grille tube: Another type of tricolor tube, often associated with certain brands like Sony Trinitron.

Synonyms

• Color picture tube
• Color CRT (Cathode-Ray Tube)

Notes

• The term is highly technical and specific to a now-obsolete display technology. It is not commonly used in everyday modern language, as liquid-crystal displays (LCDs) and light-emitting diode (LED) panels are the current standard.
• The phrase is a compound noun. The core target word is "tube," modified by "tricolor" to specify its function.

Noun

1. a color television tube in which three primary colors are combined to give the full range of colors