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Cathode-ray tube - Wikipedia
Television - Picture Tubes, Cathode Ray, Resolution | Britannica
Television History and the Cathode Ray Tube - ThoughtCo
How to Know When Your TV Picture Tube Is Bad - Techwalla
What Is a CRT, and Why Don't We Use Them Anymore? - How-To Geek
Television picture tube | instrument | Britannica
CRT (Cathode Ray Tube) TV Basics - YouTube
How does television picture tube works? - Physics Network
What It Was Really Like To Watch The First Color TVs
Trinitron - Wikipedia