The standard size for the hole on an LP is one-half inch. RCA decided to make the hole on its new 45 1.5 inches wide for a couple of reasons..
Consequently, how big is the hole in a vinyl record in MM?
The standard for a 12" record hole seems to be 7.24mm -0 +0.09mm or 0.285 to 0.289 inch.
Similarly, why do 45 records have a big hole? But there was a more scientific reason for the larger hole. When a new 45 dropped from the spindle onto the turntable, it was required to spin up from a dead stop to 45 RPM very quickly. This torque tended to cause the small holes to go out-of-round very quickly, causing record to wobble as it spun.
Furthermore, how big is the hole in the middle of a record?
1.5 inches
Can you play 7 inch vinyl?
It is most commonly older records that play at 78 RPM. 7-inch vinyl record: A 7-inch(18 cm) vinyl record plays at 45 RPM. This normally fits around five minutes of music on each side and is used for singles.
Related Question Answers
How deep is a record groove?
The depth of the groove is nominally 28μm (0.0011"). The bottom of the groove is not, in fact, a sharp corner but has a radius of 6μm or 0.25 thou' (0.00025"). A original, standard microgroove diamond stylus of conical (spherical) form has a radius of 25μm (0.001").What is the diameter of a 45 record?
7 inches
How thick is a vinyl record in inches?
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.Why does vinyl sound so good?
Vinyl Sounds Better Vinyl sounds better than MP3s ever could. Most of the music is broadcast in some lossy format, where details are missed, and the overall quality is reduced. It happens because audio files get compressed to make them small enough to store thousands of them on the phone, and to stream online.At what temperature does vinyl warp?
A typical vinyl record can start warping due to heat at a temperature of 140°F (60°C) and can melt at temperatures exceeding 212°F (100°C). Other factors, such as humidity, sunlight exposure, and improper storage, can drastically impact the resilience of a record.What speed is my record?
Vinyl records are produced to be played at one of three speeds: 33 1/3 RPM, 45 RPM, and 78 RPM. You will almost never deal with 78 RPM records, so don't worry about that. Most full-size 12-inch records will be 33 1/3 RPM, though some — mainly EPs and maxi-singles — will be at 45 RPM.What does a 45 rpm adapter do?
It is a small metal or plastic piece that is placed in the center of a 45 rpm record. The adapter allows for the record to be played on a turntable's 78 rpm or LP size spindle. Some 45 rpm adapters are diminutive solid circles that slide onto the spindle's bottom. Others are larger and fit over the full spindle.When did vinyl records go out of style?
It is currently unclear which artists will be selected for the newly-revived retro format, which the company hopes to get into production by March 2018. In all fairness, Sony's original decision to cease making vinyl probably made sense back in 1989.When did 45 records stop being made?
1990
Why are singles 45 rpm?
According to audiophiles, the 45 RPM format sounds better because more musical data is fit into a smaller space than with 33 RPM records. This logic is also applied to digital music formats such as MP3s. A 256kbps MP3 is said to sound better than a 128kbps MP3 because more data is contained in the file.How big is a 78 record?
78s 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.How long is one side of an LP?
Full-length LP records on 150 and 180 gram vinyl When cut at 33 rpm the records hold around 15-22 minutes per side. This is the most common speed used for 12 inch records. In some cases they're great to cut at 45 rpm but only hold around 12-15 minutes per side.How do you tell if a record is 33 or 45?
You can usually tell if a record is a 33 RPM or 45 RPM by looking at the label. A 78 will not be made of vinyl. You're not going to run into 78s unless you seek them out, so don't even worry about them. These objects, BTW, whether made of vinyl, shellac, or other plastics, are called records.What's the difference between 33 and 45 records?
been suggested that 78 minus 33 equals 45 was the reason for the emergence of 45 rpm records but, in fact, Maxfield's analysis still applies: the 45 "single" was RCAÕs equivalent to a 10-inch, 78 rpm record, only smaller. The 7-inch discs lasted a minute or so and had low sound quality.Why is a record called a 45?
The long playing (LP) record and the 45-rpm disc were two different approaches to high fidelity music, introduced by two different companies in the late 1940s. In order to make the disc smaller than the 10-inch, 78-rpm discs used since the 1890s, they reduced the speed to 45-rpm and used a much finer groove.What was 16 rpm used for?
The 16 rpm position was not used very often, mainly because it delivered poor sound quality. However it doubled the playing time of the more familiar 12-inch 33 rpm records and was therefore used for spoken-word records like plays and talking books.What were records made of before vinyl?
At first, the discs were commonly made from shellac; starting in the 1940s polyvinyl chloride became common. In the mid-2000s, gradually, records made of any material began to be called vinyl records, or simply vinyl.Why do records have drill holes?
Records with drill holes denote "cut out" stock, either from a too large pressing run or stock which was sold on a sale-or-return basis being returned.Why do records have different speeds?
The slower a record turns, the worse the audio sounds. Due to this, in order to provide the best sound possible, the record needs to turn faster (higher RPM). However, when a record turns faster the amount of information it can hold on a record is reduced thus having a shorter playback time. 
