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From: rsg@cbscc.UUCP (Bob Garmise)
Newsgroups: net.games.trivia
Subject: Re: Trivia at 45 rpm
Message-ID: <4786@cbscc.UUCP>
Date: Tue, 12-Feb-85 11:24:04 EST
Article-I.D.: cbscc.4786
Posted: Tue Feb 12 11:24:04 1985
Date-Received: Thu, 14-Feb-85 00:57:56 EST
References: <435@petsd.UUCP>, <170@ihlpg.UUCP>
Organization: AT&T Bell Laboratories , Columbus
Lines: 10

> Ok trivia fans.  Why do 45 rpm records have bigger center holes than 33's
> and 78's ?

It's my understanding that RCA (I think) tried to establish an "new standard"
by putting larger holes into records that went at a different speed.
Eventually, the new standard became the standard for singles only, and the
competitive standard (small holes at 33rpm) became the LP standard. Why were
78s abandoned? I'm not sure, but I can guess...you can't fit much onto
one...it goes too quickly.
...bob garmise...at&t bell labs, columbus...