Re: [ARSCLIST] identifying acetate substrates

[David Lennick <dlennick@xxxxxxxxxxxx>]

Apparently World Broadcasting System was using a dark red translucent material
in
the mid 30s that is different from the material they used in the 40s (which can
be
brighter red or very dark red, almost black, similar to what they used when
they
pressed Decca's "Deccalite" 78s in the mid-to-late 40s) and which has a
somewhat
vinegary smell. I've heard about these but haven't run across any. These are
pressings, definitely not glass.

dl

Eric Jacobs wrote:

> Do you think that the dard red, transparent record was solid
> nitrocellulose?  Or was it nitrocellulose on a glass substrate?
>
> Eric Jacobs
> The Audio Archive
>
> ---- Original message ----
> >Date: Fri, 22 Jul 2005 00:08:24 +0200
> >From: George Brock-Nannestad <pattac@xxxxxxxx>
> >Subject: Re: [ARSCLIST] identifying acetate substrates
> >To: ARSCLIST@xxxxxxxxxxxx
> >
> >From: Patent Tactics, George Brock-Nannestad
> >
> >Hello,
> >
> >David Lennick wrote:
> >
> >> If they say glass, chances are they ARE glass, especially if the center
> >> portion looks removable. Very carefully hold one up to the light..if it's
> >> glass, you'll see through it.
> >
> >----- I remember witnessing an examination/final project presentation for a
> >degree in media restoration, during which the person presented a dark,
> >transparent red record (darker than the Victor Heritage) as proof that
> >records were also being made in "solid shellac". Neither the tutor nor the
> >external examiner protested. In the interval I sniffed the surface -
> >cellulose nitrate, obviously. I never told anyone aloud, but the event
taught
> >me that if I were ever to hire someone - even someone with a degree - I
would
> >present practical items for discussion during a job interview. There is such

> >a vast amount of media out there. And we would like people to have knowledge

> >about them.
> >
> >Kind regards,
> >
> >George