Shawn Borri can probably best answer your questions about cutting a
cylinder. He makes the wax blanks that you would need to cut. But cutting
a 78 is a whole different kettle of fish and pretty much a pipe dream if
your purpose is to be able to play it on an acoustic phonograph. NO
practical means exists for recording onto a disc that has sufficient
durability that it can be played with an acoustic reproducer. In the 1930s
there were disc recorders that cut into aluminum discs that could then be
played back with the relatively crude crystal pickups of the day. But these
recordings were noisy and really only suitable for speech documentation or
amateur use. Vinyl records are still too soft to be played without
significant wear on an acoustic reproducer. But in order to make a vinyl or
shellac 78, you have to go thru ALL the motions of recording a master in a
soft material such as wax or the modern medium of nitrocellulose "lacquer".
But these recordings are WAY too soft to be played by anything other than a
very light tracking force modern pickup. To make a shellac record, these
delicate masters have to be electroformed into at least a metal stamper (the
typical process includes going thru a metal master and metal mother before
making the stamper) which must then be put into a huge hydraulic press that
compression molds the shellac material into the final record. You can pay
to have vinyl records made this way, but nobody that I know of still molds
shellac records.
Greg Bogantz
----- Original Message -----
From: <[email protected]>
To: <[email protected]>
Sent: Friday, December 07, 2012 3:24 PM
Subject: [Phono-L] Cutting records
Any info on best way to cut a cylinder (or to cut a 78 disc) from a digital
file (eg, .wma)?
Any service or individual that does this sort of backwards transfer?
I have one or two digital files of some music pieces (2 minutes each) that
I'd like to have cut for playback onto cylinder and/or onto (78) disc.
Or am I nuts?
Thanks
Kevin
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