[78-L] groove size again

[Steven C. Barr]

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From: "Michael Biel" <mbiel at mbiel.com>
> Easily it would be the VERY wide groove Pathe used for those GIANT
> 20-inch discs.  I've only seen one player in operation and I do not
> remember the width relative to the normal Pathe sapphire.
>
But...did Pathe use wider grooves on these 20" discs...or simply increase
the groove spacing, which would have allowed more deeply cut grooves...
and as a result increased playing volume (and as well were these wider
than the standard grooves on their 10"(+/-) vertical-cut discs? Remember
that Pathe had already sold millions (or so) of players with their standard
ball-tipped styli...so it seems unlikely they would be promoting and selling
records which used different styli...?!

Steven C. Barr