![]() The nickel part is the first negative (think of the term “negative” as commonly used in film photography) and is often called the “father.” This part can now be mounted on the molds of a hydraulic press and used as a stamper, to press out multiple copies of the record. This nickel layer is also grown within the groove structure, so when the nickel part is pulled apart from the soft master disk, its newly exposed surface contains ridges instead of grooves. Those interested in a rather more exotic implementation of the same principle for purely artistic purposes may find the author’s vacuum tube electrochemical synthesizer mildly entertaining: ) (Note: Readers interested in a more elaborate description of the record manufacturing process can find it in Copper Issues 92, 93 and 94. The unplayed master disk thus had to be “metallized,” using a vacuum sputtering process for wax or a “silvering” process for lacquer (spraying the surface of the disk with a silver nitrate solution to make it conductive) and then electroplated in a galvanic bath, where a layer of nickel would be grown on the disk by means of an electrochemical reaction. This soft material could be played back, but would be destroyed in the process and no longer able to be used for the mass-manufacturing of vinyl records. ![]() Prior to that, all records started life as master disks cut on a soft material (the so-called wax of the acoustic and early electrical recording era, or the lacquer which dominated after the 1930s). There is much more to be communicated here than mere wine tasting lingo describing the sound (full-bodied, almond aftertaste?)…ĭirect Metal Mastering (DMM) is a patented and trademark-protected process, invented by Teldec (Telefunken-Decca) in the 1980s. 1 disk, recently released by Stockfisch Records of Germany, some background is essential for a full appreciation of what this actually means, in technical and even philosophical terms. Before I begin writing about the DMM Dubplate Vol.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |