What is the 45 rpm adapter called?
45 rpm record insert
A 45 rpm adapter (also 45 rpm record insert, 45 rpm spindle adapter, 7-inch adapter or spider, the common size of 45 RPM records) is a small plastic or metal insert that goes in the middle of a 45-rpm record so it can be played on the standard size spindle of a turntable.
What is the purpose of a 45 rpm adapter?
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.
Can you play 45 records on a regular record player?
Each adapter allows you to play 45 RPM singles on almost any record player. The adapters are easy to use, simply snap it into the center of the 7″ record and place on the turntable spindle – no tools are required!
Why do 45s have big holes?
A larger hole allowed the sudden rotational forces to be distributed over a greater distance (π x 1.5; about 4.712 inches), reducing wear and allowing the hole to stay rounder longer. This was especially important for the jukebox industry. In the 1930s, ’40s, and ’50s, jukeboxes were big, big business.
What does a hole in a 45 record mean?
They switched their jukeboxes from 78 to 45. This forced record manufacturers to make 45s if they wanted jukebox play. The large hole made it easier to make a jukebox ply both sides.
Do 45s sound better than 33s?
Since 45s travel faster than 33s, more waveform definition can be squeezed into the format, which takes up more room. More bumps and grooves created in pressing a 45 means better audio quality. As a hypothetical example, suppose you were able to uncoil the grooves in your record.
What size are record sleeves?
The size of the typical cardboard LP sleeve cover is 12.375 in (31.43 cm) square.
Why do 45s sound better?
The higher rotation speed of 45 RPM allows for a wider frequency response, and the larger available surface area allows for less compression of any signals with a wide amplitude. Bass is an example of a wide amplitude signal that sounds better on 45. Overtones and high treble are also better.
What is a 78 record?
Any 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. The materials of which discs were made and with which they were coated were also various; shellac eventually became the commonest material.
Why do singles play at 45 rpm?
Scientifically speaking, the longer wave-lengths, the smaller angles in the grooves and the less complicated geometry at 45 RPM help to cut very precise grooves with even the finest details. With a higher rotation speed, of course, the available playing time per side is reduced at 45 RPM.