During and after World War II when shellac supplies were extremely limited, some 78 rpm records were pressed in vinyl instead of shellac (wax), particularly the six-minute 12" 78 rpm records produced by V-Disc for distribution to US troops in World War II.ħ8s come in a variety of sizes, the most common being 10 inch (25 cm) and 12 inch (30 cm) diameter, and these were originally sold in either paper or card covers, generally with a circular cutout allowing the record label to be seen.
Generally 78s are made of a brittle material which uses a shellac resin (thus their other name is shellac records). The materials of which discs were made and with which they were coated were also various shellac eventually became the commonest material. 21-48.īill's 78rpm beginner's page Explanation of side coupling for 78rpm sets Grove Music Online A history of vinyl Wikipedia Recording Industry Association of America (RIAA) websiteĪny flat disc record, made between about 1898 and the late 1950s and playing at a speed around 78 revolutions per minute is called a "78" by collectors. Cataloging & Classification Quarterly, vo. Describing jazz, blues, and popular 78 RPM sound recordings: suggestions and guidelines.
This is a brief guide to aid in cataloging Music Cataloging at Yale ♪ Sound recording cataloging
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