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1877 the first phonograph was invented by Thomas Edison. The phonograph was the first method of recording and playing back sound. This was Edison's first great invention. The new invention gave Edison international fame.
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. He toured the country with the phonograph and was even invited to the White House to demonstrate the invention to President Rutherfor B. Hayes in 1878
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1906 the Victrola model record player was introduced by RCA Victor. This record player had variable turntable speeds to accommodate the already wide range of records being produced at the time. Two years later Columbia Records introduced the first double-sided phonograph records.
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Finally in 1912, cylinder recordings were a thing of the past and disc recordings were the hip thing to have. 12 years after the invention of the record made a hit
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1924 things got a little more high-tech. Electrical reords were now replacing the acoustic records
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.In 1928 the standard speed for all phonograph records became 78.26rpm.
LPsd (Long Playing recorder) also known as an "album" were invented in -
The 33 1/3 LP was released by Columbia Records. The preferred disc for singles became the large-hole 45rpm records by RCA Victor.
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. T.he 45rpm record was 7".
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the Recording Industry Association of America was formed. There was the 33-1/3rpm LP, the 78rpm, and the 45rpm at 12", 10" and 7
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1955 the 12r became more popular than the original 10" LPs
