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Hi Jay,

Although Im not an expert, I believe each individual step of the process
(lacquer cut, silvering, 1 or 3 sequences of electroplating, test pressing
run) could have been accomplished in a few hours or less.  So it seems
possible that if the project was important enough and had sufficient
administrative muscle behind it, test pressings might have been
accomplished within the tight time frame you describe.

I remember a project in the mid 90s where the DADC/SONY plant made an
error in the coding of a CD master.  The artists received the manufactured
product and noticed the defect instantly - 36 hours before their departure
for an Asian tour.  DADC immediately acknowledged their error, and within
24 hours: recoded the 1630 master, cut a new glass master, completed
electroplating all of the new metal parts, reprinted all of the artwork,
pressed new discs, assembled the packages and delivered the corrected
product to the artists - 6 hours before their flight departed.  So it can
all move quickly if the will is there to do it.

I guess that to solve your mystery, you might have to determine if the
record label would be so interested in the project (or other external
factors pressured towards a fast turn-around) that this project might have
been a candidate for such expedited treatment.

Best,
Mark



On 10/29/17, 7:49 PM, "Association for Recorded Sound Discussion List on
behalf of Jay Bruder" <[log in to unmask] on behalf of
[log in to unmask]> wrote:

>Dennis:
>  Thank you for your answer. This is lacquer to pressed disc.
>Jay
>
>-----Original Message-----
>From: Association for Recorded Sound Discussion List
>[mailto:[log in to unmask]] On Behalf Of Dennis Rooney
>Sent: Sunday, October 29, 2017 10:12 AM
>To: [log in to unmask]
>Subject: Re: [ARSCLIST] original recording to test pressing timeline in
>1949 ?
>
>In 1949, Columbia was still mastering on lacquer discs. Is what you have
>a test pressing or a lacquer reference? The latter could be turned around
>easily from Thursday to Tuesday, whereas the time frame you give for the
>former seems brief, although arrangements for extraordinary circumstances
>could have made it possible.
>
>DDR
>
>On Sun, Oct 29, 2017 at 10:04 AM, Jay Bruder <[log in to unmask]> wrote:
>
>> Does anyone know how long it took to turn an original recording into a
>> test pressing in the late 1940s? How long did each plating stage take?
>> We are trying to assess the validity of a recording session date
>> reported to have been held in Columbus on Thursday January 27, 1949
>> and a test pressing -presumably for Savoy in Newark- inspected the
>> next Tuesday, February 1, 1949.
>>
>> Jay Bruder
>>
>
>
>
>--
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