[78-L] dubs

[David Lennick]

Was it ever possible to process a pressed disc (shellac) and make a negative? 
I've seen reference to this being done, and some of the Marian Anderson sides 
in the Joe Davis album are clearly not dubs.

dl

Michael Biel wrote:
> From: Malcolm Rockwell <malcolm at 78data.com>
>> Yeahbut... the mother would also have to break. You can always
>> make more stampers from the mother, that's why the 4-stage process
> 
> I think this was what Royal had really meant to say, that the mother
> broke, not just a stamper.  A stamper only makes about a thousand
> records anyway, so they are always being remade from the mother.  If
> they went back to the mother and she broke, in those years they might
> have not made or saved more than one mother and they probably did not
> hold onto the original metal negative during the long interval before
> the reissue.
> 
>> UNLESS the mother was a plated acetate!
> 
> Lacquer.
> 
>> Then it's all a one-shot as the acetate
> 
> Lacquer.
> 
>> is destroyed in the process. You get one stamper and that's it.
> 
> They generally could not trust to get a second pull from a wax master
> either, and even if they did, the later pulls were usually not as good. 
> Since only about a thousand copies can be pressed from a stamper, even
> in the depression I doubt they would trust pressing from the pull
> directly from the studio master.  
> 
>> To the best of my knowledge there were no lacquers in 1928. No? Mal
> 
> Right, they came out in late 1934 but were not really used for mastering
> for pressing until after 1936. There might be paperwork at Victor that
> shows the dubbing session for the replacement master which might state
> the reason for the dubbing. 
> 
> Mike Biel  mbiel at mbiel.com  
>  
>  *******
> 
> DAVID BURNHAM <burnhamd at rogers.com> wrote:
>  >> I just found a Hank Snow record where side A is a dub and side B is
> an
>  >> original pressing. I'm curious to know how one side's stamper gets
> worn out
>  >> faster than the other side's if they both make the same number of
> records.
> 
>  Royal Pemberton wrote:
>  > Sometimes, a stamper breaks. Witness 'South' by Benny Moten.
> Originally
>  > Victor V-38021, this 1928 record was reissued in 1934/1935 on Victor
> 24893.
>  > What I understand is, a few early pressings of 24893 have 'South'
> from the
>  > original metal, but after it broke, a dub was made and used ever
> after,
>  > whereas 'She's no trouble' was always from the original metal AFAIK.
> (My
>  > copy has the circle label, 1R for the take digit, and has the typical
> mid-30
>  > style leadout spiral but the oval VE logo.)
>