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From: fritz@hpfclp.UUCP (fritz)
Newsgroups: net.audio
Subject: Re: Playing analog records by laser
Message-ID: <3900017@hpfclp.UUCP>
Date: Thu, 9-May-85 13:53:00 EDT
Article-I.D.: hpfclp.3900017
Posted: Thu May  9 13:53:00 1985
Date-Received: Sun, 12-May-85 00:40:55 EDT
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Nf-From: hpfclp!fritz    May  1 09:53:00 1985

Re:  laser-read analog vinyl discs

I may be remembering wrong, but... don't some of the high-frequency grooves
on an album (violins, cymbals, etc.) have undulations that are actually
smaller than a light wavelength, but are still picked up (astonishingly
enough) by mechanical styli?  These would seem to be difficult to read
with a laser.

Other than that, I think it's a terrific idea, and one I have toyed with
for many years.

Gary Fritz
Hewlett Packard
Ft Collins, CO
{ihnp4,hplabs}!hpfcla!fritz