These “microgrooves” allowed for a much longer spiral: 1,600 feet. Not only did vinyl last much longer, but the grooves could also be placed much, much closer together and played with a stylus that was tinier and far sharper. Vinyl was much more durable than the shellac-based compounds used with 78s. RCA’s rival, Columbia Records, picked up on the technology as they were experimenting with a new plastic substance called polyvinyl chloride - vinyl for short - which had gone into use in the 1920s for sewer pipes. So in an extremely silly move, RCA let a bunch of patents associated with their 33 1/3 RPM disc expire.įast-forward to 1948. RCA tried to introduce the new records to the general public as an alternative to the 78, but it was the Great Depression and the entire recorded music industry saw a sales collapse of 95 per cent through 19. People were not in the mood for a new recorded music format. READ MORE: Bow Wow’s girlfriend details alleged abuse in 911 call ![]() That gives us a rotational speed of 33.33 RPM. To make the audio last the same 11 minutes, the math dictated that the motor be geared down to 108:1. To match up the film with sound, a company called Vitaphone introduced a system that used a standard 3600 RPM motor to rotate a soundtrack disc. Alberta still working on application portal for E. ![]()
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