Rob Sevier wrote:
> a few "record companies" had created new plates by electro-plating
> commercially available shellac discs.
This is interesting, from a viewpoint of just how they were able to plate
a commercial shellac release.
I suspect that the source shellac disc would be destroyed in the process
when it was separated from the plating, making only one stamper possible
from the source disc... a one step process, although this begs the question
"were they able to use it as a matrix to pull a mother from"?
The biggest question remains, how did they get enough extra diameter for a
"gripper" in the press to hold a stamper produced in this fashion?
This process would likely not produce a particularly good result since it
would add the "grain" noise of the shellac disc source to the grooves of
the copy thus made.
It would be very interesting to hear an original compared to such a copy!
Does anyone have additional information on this process?
... Graham Newton
Audio Restoration by Graham Newton, http://www.audio-restoration.com
World class professional services applied to tape or phonograph records for
consumers and re-releases, featuring CEDAR's new CAMBRIDGE processes.