Posted in classic hacks Tagged classic, crt, retro, sony, Trinitron, tv Post navigation Interested in retro CRTs? Check out Dan’s article on cleaning up the fogged plastic safety screen on the front of many CRTs. We’ve added him to our Must watch subscription list. is doing some amazing work describing early TV systems and retro consumer electronics over on his YouTube channel, Technology Connections. Trinitrons also use a single electron gun, with three separate cathodes. The aperture grill blocks less of the electron beam than a shadow mask, which results in a much brighter image. Trinitrons use vertical bars of single phosphor color and a picket fence like aperture grille. The holes ensure that the electron guns hit only the red, green and blue dots of phosphor. Typical color TVs use a shadow mask - a metal sheet with tiny holes cut out. Closeup of a Trinitron tube shows unbroken vertical stripes which led to a brighter picture.Īll color TV’s shoot three electron guns at a phosphor screen. It was clear the company had to innovate, and thanks to some creative engineering, the Trinitron was born. The tubes worked, but they were expensive and didn’t offer any advantage over common shadow mask tubes. Chromatron tubes used individually charged wires placed just behind the phosphor screen. Sony Color TVs didn’t start with Trinitron - for several years, Sony sold Chromatron tubes. dives into the history of the Sony Trinitron tube. Their Trinitron tubes always made the best TVs and Computer Monitors. If you’re old enough to remember Cathode Ray Tube (CRT) Televisions, you probably remember that Sony sold the top products.
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