[78-L] Stylus for RCA Home Recording Disc

[Michael Biel]

-------- Original Message --------
Subject: Re: [78-L] Stylus for RCA Home Recording Disc
From: "Ron L'Herault" <lherault at bu.edu>

> I've done a few. I'm pretty sure they were cut rather
> than embossed so the smaller stylus should be fine. Ron L

If you are discussing the pre-grooved RCA Home Recording discs could not
be cut.  It could not be done because a cutting stylus cuts its own
groove.  The pre-groove system used a broad blunt round-point needle to
spread out (emboss) the top of the pre-groove walls.  The sound is only
up there at the TOP of the groove wall.  A regular playback stylus will
hit the groove wall well below the recording.

On the other hand, the soldier letters records are cut and are played
like ordinary lacquers.

Mike Biel  mbiel at mbiel.com

-----Original Message-----
From:  Sammy Jones

Would there be any reason to go larger than 5 mil?

And while we're on the topic of homemade records, anybody have much
experience transferring those USO "Letter on Record" discs from World
War
II? I have about a dozen to do for some friends. Like the RCA Home
Recording disc, they play okay with the 3.25 mil and some EQ, but would
probably sound better with a wider stylus.

Comments appreciated...

Sammy Jones