Record Technology Inc.
P l a t i n g D i a g r a m
Shown here are enlarged characterizations of the recorded grooves starting with the master lacquer through full "process plating" to the final pressed record
M a s t e r L a c q u e r
A music source is fed to a mastering lathe and the modulated signal causes the grooves to be cut in the master lacquer. The master lacquer, although slightly larger, appears very much like a finished LP without labels. The master lacquer is then put in electroplating, where the metal master is made (to eliminate groove deterioration).
M e t a l M a s t e r
From each master lacquer only one metal master can be plated, from which the metal mother is plated.
M e t a l M o t h e r
Metal mothers can be "pulled" from the one metal master from which metal stampers are plated.
M e t a l S t a m p e r s
Metal stampers (the manufacturing press discs) can be "pulled" from each metal mother and from each stamper approximately 500 to 1,000 finished records can be pressed.
P r e s s e d L P R e c o r d