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From: rkp@drutx.UUCP
Newsgroups: net.audio
Subject: Re: record speeds
Message-ID: <1137@drutx.UUCP>
Date: Thu, 20-Sep-84 10:00:23 EDT
Article-I.D.: drutx.1137
Posted: Thu Sep 20 10:00:23 1984
Date-Received: Sun, 23-Sep-84 11:43:53 EDT
References: <591@clyde.UUCP>
Distribution: na
Organization: AT&T Consumer Products-Denver
Lines: 25


>Someone asked me the following question: 
>
	>Where did the speeds for records come from?
		>(78 rpm, 45 rpm, 33 1/3 rpm)
>
>I had no idea so I thought I'd ask the net.  Incidentally, the
>questioner observed that 33 + 45 = 78.  (Yea I know it's 33 1/3...)
>This latter point strikes me as coincidence...
>
>If you have any information or comments on these two points,
>please let me know.
>
	>Steve Falco  AT&T Bell Laboratories   clyde!saf

Don't forget about 16 2/3 (which is half of 33 1/3).

I would also like to hear the reasoning behind these speeds (if
there is any reason).

--
   Russell Pierce
   AT&T Consumer Products
   Denver, Colorado
   ...!drutx!rkp