Sony Trinitron colour television receiver, c 1970.
3 0 c m
actual image size: 32cm x 22cm

Sony Trinitron colour television receiver, c 1970.

© National Media Museum / Science & Society Picture Library


The KV1300UB Trinitron marked the introduction of Sony's unique Trinitron technology. Sony, having had a late start in colour sets in 1961, first pinned its hopes on the chromatron tube, which produced a display six times brighter than the rival RCA shadow-mask tube. Until that time, however, it had been limited to specialized military use. Despite the technical difficulties involved in producing the chromatron tube, Sony decided to adopt it. The new colour set was named Trinitron - a compound derived from trinity, meaning the union of three, and tron from electron tube. The 13-inch Trinitron was very popular in the UK and became well known for its reliability. When this set was launched, many rival models of colour TVs were known in the trade as 'curtain burners' because they frequently overheated.

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