The use of this synthetic thermoplastic material instead of wax significantly increased sound quality: reduced background noise, increased frequency response, dynamic range and the running time, which jumped from less than 5 minutes to 30 minutes on 33 rpm records.
As vinyl records have a much finer grain (about 50 angströms = 5*10-3 µm), they allow for narrower and closer grooves to be cut. Their acoustic and technical superiority over 78 rpm records immediately became a selling point. They contained Mendelssohn's and Tchaïkovski's music. The first microgroove records were marketed in 1948. The arrival of the first 'modern' record players coincides with the invention of the microgroove in the USA in 1946 by Columbia. 78 rpm records began to disappear with the advent of the microgroove in the 50's. But the shortage of resin during WWII prompted manufacturers to use vinyl (polyvinyl chloride, or PVC) instead. They were initially made of SHELLAC (an animal-based resin secreted by an insect), wax, cotton and slate. In fact, they were only rarely recorded at 78 rpm, instead at speeds of up to 66 and 103 rpm, to extend recording time, sometimes to the detriment of the frequency response. Depending on size, they could hold between 3 and 5 minutes of sound. It was a microgroove disc with a diameter between 10 and 12 inches (25 and 30 cm), with usually one track on each side. The forefather of the vinyl record is the 78 rpm record.
33 rpm record players how to#
How to choose your Hi-Fi speakers? Discover.What difference between phono cable and interconnect cable? Discover.Digital cables (USB, optical, Ethernet.).Speaker Cables, Banana and Fork connectors.How do I take care of my records ? Discover.Accessories for record cleaning machines.Brushes and cleaning products for vinyls.How to choose your phono preamplifier ? Discover.USB / Digital / Bluetooth Phono Preamplifiers.
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How do I upgrade my turntable ? Discover.How do I choose a Hi-Fi cartridge ? Discover.USB / Digital / Bluetooth / Phono Turntables.
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