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Why do 45 rpm records have large holes?

Why do 45 rpm records have large holes?

Tonearms hate wobbly records. 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.

What is the difference between a 33 and a 45 record?

33–1/3 RPM were introduced to solve the time problem, they were called LP for long playing and that was the problem. Having a larger diameter extended the time and so did a slower turn. These were meant to cover both classical works with times of up to about 22 minutes a side and 45 minutes total.

Why 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.

Why do 45s need an 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.

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Are 45 records smaller?

Single discs are physically smaller – usually 7 inch 45 RPM releases. Oftentimes bands will release multiple 7-inch records to support the various singles on an album, before finally releasing the 33 RPM 12-inch release to stores.

Why are 45s called 45s?

7-inch format The most common form of the vinyl single is the “45” or “7-inch”. The names are derived from its play speed, 45 rpm (revolutions per minute), and the standard diameter, 7 inches.

What is the thing in the middle of a 45 record called?

45 rpm adapter
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 center of a vinyl record called?

Labels: The paper circle in the middle of a pressed record. Sometimes referred to as a “sticker”, a record label is actually not adhered to the face of the disc after pressing – it is an integral part of the pressing process, and serves to cool the middle of the record while it is being pressed.

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What’s the center of a 45 record called?