[78-L] Does anybody know whether it is possible to make a 78 rpm record that could be play on an acoustic phonograph?

[Martin Strauss]

I've wondered this question myself; the best my research has been able to
turn up is the following advertisement:
https://www.smooth-on.com/tutorials/mold-and-cast-a-record-that-plays/

Also, for the right price ($275 for a one-sided 10" 78),
http://www.customrecords.com/ claims to be able to manufacture 78s that can
be played on an acoustic phonograph, although when I enquired as to their
technique, the only reply was "that’s all proprietary knowledge – sorry".

I'd be very interested in hearing what anyone else finds out.

Martin

On Sat, 12 Nov 2016 at 14:39 Thomas Stern <sternth at attglobal.net.invalid>
wrote:


Rather than seeking shellac formulations, which were noisy and brittle,
perhaps there are some modern materials capable of being molded in
a record press, which yield a smoother harder surface less prone to wear ???
Thomas.

-----Original Message-----
From: 78-l-bounces at klickitat.78online.com
[mailto:78-l-bounces at klickitat.78online.com] On Behalf Of Kristjan Saag
Sent: Saturday, November 12, 2016 7:54 AM
To: 78-L Mail List
Subject: Re: [78-L] Does anybody know whether it is possible to make a 78
rpm record that could be play on an acoustic phonograph?


Hi, Eric,
This has been discussed both on this list and elsewhere. See...
http://www.lathetrolls.com/viewtopic.php?f=15&t=3089
...for instance.
Perhaps it's possible to do this as a one-off project, but you'd still need
the equipment capable of grinding, blending and heating limestone, slate,
shellac, carbon black, cotton fibres etc in order to produce the biscuit to
press. Pressing temperature seems to have been a bit higher than for vinyl
pressings, not pressure, however. It'd probably be possible to use the
equipment in a vinyl pressing plant (who also grinds used vinyl and fillers
in most cases - virgin vinyl is not the ideal compound for durable records),
although the press, due to temperature differences, would be separate.
I'd suggest you make friends with a well-to-do 78's collector looking for
somewhere to get rid of his savings. I'm not sure you'll find this person on
this list...
Kristjan




On 2016-11-12 01:23, ERIC BYRON wrote:
>   Doesanybody know whether it is possible to make a 78 rpm record that
> could be playon an acoustic phonograph?  The kind ofrecord that would
> interest me would have the durability of records made before1925.  Any
> suggestions would be greatlyappreciated.
> _______________________________________________ 78-L mailing list
> 78-L at klickitat.78online.com
> http://klickitat.78online.com/mailman/listinfo/78-l


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