[78-L] When is a microgroove not a microgroove?

[Ron L'Herault]

Vinyl or still shellac?  If shellac, maybe they figured kids were still
using steel needle kiddie machines?

Ron

-----Original Message-----
From: 78-l-bounces at klickitat.78online.com
[mailto:78-l-bounces at klickitat.78online.com] On Behalf Of David Lennick
Sent: Monday, May 07, 2012 11:44 PM
To: 78L
Subject: [78-L] When is a microgroove not a microgroove?

I have 4 7-inch 78s pressed (uncredited) by Decca, given as premiums by the
Quaker Oats Company or something like that..the theme and 3 stories in the
Sergeant Preston of the Yukon series, issued in 1952. You would think they
were microgroove, but a .7 stylus gives a very hissy output..I thought this
was poor pressing material, but I tried a 2.0 mil truncated elliptical
stylus and the sound was perfect. Discs are near mint, so this doesn't seem
to be a matter of the discs having been chiseled out. How come this, how
come?

dl

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