"RPM" is the abbreviation for "rotations per minute."
The RPM of a standard 12" vinyl record is approximately 33 1/3 rotations per minute.
When vinyl records are made, the grooves are "cut,"or created, at a certain speed. In order to ensure proper and accurate playback of the sound information created in the grooves, the record must be played at the same speed that it was cut at.
The RPM of most 7" vinyl singles is 45RPM; sometimes, if a musician wants to be able to fit a longer song on a 7" record, it will be cut (created, remember?) at 33RPM, thus resulting in a longer playing time. This is because it takes longer for the needle to reach the end of the record at this slower speed.
As previously stated, the standard RPM for 12" vinyl records is 33 1/3RPM, but occasionally artists will choose to have their 12" records cut at 45RPM. This is more common in 12" vinyl "singles" - 12" records with only 1 or 2 songs per side. However, it is not recommended to cut a 12" record at 45RPM - there are many reasons not to. Sound quality suffers for numerous reasons. (I have one - it sounds terrible)
The olllld shellac records made in the early 1900's were cut at 78RPM. Most modern turntables ) don't have the capability to play these records; they also require a different needle than vinyl records.
Playing a 33 1/3RPM record at 45RPM will result in a higher pitched sound and a faster playing speed than intended.
Playing a 45RPM record at 33 1/3RPM will result in a lower pitched sound and a slower playing speed than intended.
Hope that helps.
~bryan
45 rpm
A Vinyl disc (record) that spins at 45 revolutions per minute
The number referred to the speed of the turntable in revolutions per minute (RPM). Vinyl records were recorded at various RPM. 33 1/3, 45, and 78
the answer is that i am not a professional so ask a professional no offence thx
EP stands for "Extended Play." It refers to a kind of vinyl record that's longer than a single but shorter than a full-length (LP or "Long Play") album. Since it's on a CD, that CD was probably originally issued as an Extended Play record on vinyl.
L.P. stands for Long Player, a 12" vinyl record with multiple tracks played at turntable speed of 33 RPM
PVC stands for poly VINYL chloride.
45 rpm
A Vinyl disc (record) that spins at 45 revolutions per minute
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". Source: Wikipedia "also 10" vinyl"
8-Track
I'm not sure if it was made available to the public but they had many 45 RPM versions on Green Vinyl but they were for jukeboxes.
The version on vinyl, or a record (the LP at 33.3 RPM). I remember when there were 45 RPM records, usually just 1 song each side, and LP records or albums, which had the Long Playing version of songs, with, sometimes, repeated choruses, etc...Earlier vinyl records had 78 RPM records also.
The number referred to the speed of the turntable in revolutions per minute (RPM). Vinyl records were recorded at various RPM. 33 1/3, 45, and 78
A vinyl record sleeve
I would, unless the seller stated that the cover would not be with it. A few exceptions would be 78 rpm records which usually did not have covers, only a paper sleeve. Ditto for 45 rpm's. And Vinyl Picture Discs which sometimes came only in a clear vinyl sleeve.
They were all on 33 rpm records. In that era, the vinyl record was the latest, most accurate rendition of audio available. CDs and MP3s were not invented at that time.