The LP (from "long playing" or "long play") is an analog sound storage medium, a phonograph record format characterized by a speed of 33 1 ⁄ 3 rpm, a 12- or 10-inch (30- or 25-cm) diameter, and use of the "microgroove" groove specification.Introduced by Columbia in 1948, it was soon adopted as a new standard by the entire record industry.

Sort the three different sizes (10", 7" and 12") into three different piles. • Direct Drive • 16 /33 / 45 / 78 rpm (16+78 RPM with costom modification) • Stacks records for contiued automatic play • Fully Automatic (7", 10" 12") or Manual operation Description: If there is the ultimate recrod changer: Here it is! The size of a vinyl record determines how much music can be recorded on the record. Pros of the product Plays at 33 1/3, 45 and 78 RPM record speeds. That player is long gone. If you see a 12-inch record in a used record store or perhaps in someones attic, it's an old 33 1/3 LP or 45 EP. A newer 78, pressed with modern technology, will have grooves the same size as other modern records, but if you look at the grooves carefully, they'll appear straighter or smoother than slower format records. Earlier they were just called records, or when there was a need to distinguish them from cylinders, disc records. A standard 78 had a 3 mil groove while 45's and 33's had a 1 mil stylus. The standard 33 1/3 RPM LP is 12 inches (30 cm) in diameter. Also 33's can hold more songs than 45's do. FREE Shipping on eligible orders. Reply Delete We would listen to 33 or 45 rpm records at the 16 speed because we could.
I once had a "one size plays all" osmium tip stylus on a Zenith "Cobra" phonograph that was 2 mil (an equal opportunity record destroyer). While most 45s have just one song recorded on each side of them, both 33s (extended play) and 78s (the original kind of record) will contain multiple songs on each side. The 3-speed turntable allows you to play records at 33 1/3, 45 and 78 RPM at 7, 10 and 12-inch sizes. A newer 78, pressed with modern technology, will have grooves the same size as other modern records, but if you look at the grooves carefully, they'll appear straighter or smoother than slower format records. The most common 33-1/3 RPM record was 12", the 45 RPM was 7", and the 78 RPM was cut in both 12" and 16". Hi-Fi Stereo Record Changer Turntables - Direct Drive: The Ultimate RECORD CHANGER for Any Record - Any Size! Loaded with plenty of great photos. Probably got innundated with satanic messages the entire time. $199.00 $ 199. I never knew why there was a 16 speed until recently. The durations of 78 RPM recordings is about three to five minutes per side, depending on the disc size: 12": ca. Source: Wikipedia "also 10" vinyl" - Any Speed! Records in the 78 rpm format were usually sold with 10 inch covers but are uncommon today. Vinyl record album covers are usually 12 inches by 12 inches for LP albums.
In the 1890’s, Emile Berliner’s first gramophone records came out and it spun at 78 RPM. 78, 33, 45 RPM History. You will almost never deal with 78 RPM records, so don't worry about that.

Coaxial Cable Size Identification By Jacob Workman Coaxial cabling is the means by which millions of people receive various services. Turntables, Record Players, Phonographs. By the 1950s, I had graduated to 7-inch 45-rpm records, even though 78s had by then become unbreakable. 00. Vinyl records are produced to be played at one of three speeds: 33 1/3 RPM, 45 RPM, and 78 RPM. The 33 and 78 records are larger than 45s but have a smaller center hole. Don't look for the speed on the record or cover – use the record size and photos above to determine what you have. Records that are 33 RPM are larger in diameter than 45's. Otherwise, the user had to put an insert in the larger hole or place a small round disc about the size of the hole on the turntable. The size of a vinyl record determines how much music can be recorded on the record. Records in the 78 rpm format were usually sold with 10 inch covers but are uncommon today. Virtually all LP records spin at 33.33.

Whether you're an audiophile who loves the rich sound of vintage vinyl records, or a budding DJ looking for the right DJ equipment to get the party started, Best Buy can help you find the best record player for you. Then, there is the issue of size. ... (33, 45, & 78 RPMs), albums (10 inch & 12 inch), picture sleeves, and more. A really old 78 (like pre-1950) will have wider grooves than a modern record. You will almost never deal with 78 RPM records, so don't worry about that. three minutes.