Vinyl Record Sizes and Speeds | What does 33 – 45 - 78 RPM mean?

From 78's to 33 1/3's, 10" shellac to 12" vinyl, and pure black to color and picture discs, records come a variety of different sizes, speeds and colors. In this video, we break down the different record sizes and record speeds.

00:00 - Intro
00:10 - 78 rpm
00:32 - 33 1/3 rpm
01:05 - 45 rpm
01:45 - Colored Vinyl
02:16 - Picture discs

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[pace.condition]

background music is disgusting, sorry

[frankmoyer]

I know all that but I'm trying to find out is why the record companies chose those various speeds.
Why 33 and a third? Why 78, why 45? Do these speeds have any mathematical significance or relationship?

[jacobmetz]

My old hifi(yes, HIFI)had a 16rpm setting. Have you ever seen/heard/had a record that plays at 16rpm?

[nandopatoch]

My EAN0S700 turntable is spinning too fast. Is there a way to adjust the speed? And even the tonearm is loose as in the cue lever is not functioning, how can I fix this?

[SJRC]

i feel bad for all the records played on that cheap Turntable that slowly destorys them...

[harry]

i have a copy of LIVE IT UP 45RPM Tresspass case is it collectable never been played on the other side is the song called JEALOUSY

[Kenneth_H_Olsen]

Can you please turn down the music . Im trying to listen to what he says

[misanthrophex]

Couldn't finish the video because of the horrible music in the background.

[hmst]

The video is useful but background music is too loud