From: utzoo!decvax!harpo!seismo!presby!burdvax!floyd
Newsgroups: net.misc
Title: Re: A question about records speeds
Article-I.D.: burdvax.559
Posted: Sat Feb 12 02:29:10 1983
Received: Sun Feb 13 04:38:46 1983
References: arizona.1325 yale-com.866

The 15 inch discs were used primarliy to get more programming onto
a single disc in order to minimize interruptions.  Not too long ago,
if not any more, you could buy broadcast turntables with 16-inch
platters and ~14-inch tonearms.  The selectable speeds were 33, 45 & 78.