Electroform produced from the Master. Impressions are made from the master disc by a plating process. Up to four mother discs can be produced, but for top quality only two are made. These are positive so cannot be used to make pressings, but they can be played. The next step is to produce the stampers.
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Mother --
Electroform produced from the Master. Impressions are made from the master disc by a plating process. Up to four mother discs can be produced, but for top quality only two are made. These are positive so cannot be used to make pressings, but they can be played. The next step is to produce the stampers.
