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Three vinyl records of different formats, from left to right: a 12 inch LP, a 10 inch LP, a 7 inch single. A phonograph record (also known as a gramophone record, especially in British English) or a vinyl record (for later varieties only) is an analog sound storage medium in the form of a flat disc with an inscribed, modulated spiral groove.
This is a list of phonograph manufacturers. The phonograph , in its later forms also called a gramophone, record player or turntable, is a device introduced in 1877 for the mechanical recording and reproduction of sound .
Phonograph cylinders (also referred to as Edison cylinders after its creator Thomas Edison) are the earliest commercial medium for recording and reproducing sound.Commonly known simply as "records" in their heyday (c. 1896–1916), a name which has been passed on to their disc-shaped successor, these hollow cylindrical objects have an audio recording engraved on the outside surface which can ...
The Cylinder Audio Archive is a free digital collection maintained by the University of California, Santa Barbara Library with streaming and downloadable versions of over 10,000 phonograph cylinders manufactured between 1893 and the mid-1920s. The Archive began in November 2003 as the successor of the earlier Cylinder Preservation and ...
The grooves are engraved into the master disc on a mastering lathe.Early versions of these master discs were soft wax, and later a harder lacquer was used.. The mastering process was originally something of an art as the operator had to manually allow for the changes in sound which affected how wide the space for the groove needed to be on each rotation.
In 1928, they produced their first electric (motor-drive) record player, and went on to produce a range of audiophile record players in the 1950s and 1960s which are, even today, regarded as high-end audio equipment, and are much sought-after, for example, the belt-driven and sub-chassis suspended TD 150 which was presented 1965.
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A typical high-performance CD-4 system would include a turntable with a CD-4 compatible phono cartridge, a CD-4 demodulator, a four-channel amplifier (or receiver), and four identical full-range loudspeakers. [5] CD-4 encoded records were also compatible with conventional two-channel stereo playback systems. In stereo mode all four channels of ...