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In 1947, the Presto 1D, Fairchild 542, and Cook feedback cutters represented major improvements in disc-cutting technology. In 1950 Scully
Recording Instruments introduced a disc cutting lathe with variable pitch, which made it possible to vary the width of the grooves (i.e. the pitch) of a master
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introduced the AM31 disc-cutting lathe, which employed a direct-drive design. Two years later, Neumann introduced a portable lathe capable of making recordings on location. Imports of
Neumann lathes into the United States were restricted, however, and Neumann lathes were not imported to the United
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In 1966, Neumann introduced the VMS66, followed by the VMS70 (1970) and the VMS80 (1980), which introduced variable pitch to
Neumann's offerings, reducing speed fluctuations to achieve smoother sound and extended dynamic range. Unlike other systems, Neumann's disc cutting system was complete and
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States until the 1960s. Scully dominated the U.S. marketplace for professional recording lathes from the 1930s to the 1960s, and almost all
American lacquer masters were cut using a Scully lathe, often fitted with the Westrex cutter head and electronics.
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disc, simultaneously conserving the available recording space of the disc while preserving the dynamics and fidelity of the recorded material. Five years later, the company introduced automation for this variable pitch feature.
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employee, designed and built a weight-driven lathe specifically designed for use by phonograph manufacturers. The first Scully lathe was sold to Cameo
Records. John's son, Lawrence, founded
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Once complete, this master disc is used to produce matrices from which the record is pressed. For all intents and purposes, the finished record is a facsimile of this master disc.
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Prior to the success of
Western Electric's "Westrex" system, master discs were produced acoustically and without electricity. In 1921, John J. Scully, a former
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purchased a Scully weight-driven lathe to demonstrate their "Westrex" cutter head and electronics for both the
Columbia Phonograph Company and
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is a device used to transfer an audio signal to the modulated spiral groove of a blank master disc for the production of
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Equipment used for transferring a sound recording to disc for the production of vinyl records
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In 1957, Westrex demonstrated the first commercial "45/45" stereo cutter head.
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Audio Record
Magazine: Quick Facts On Disc Recorders (October 1952)
180:"Licensing the Western Electric Electrical Recording System"
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Neumann VMS70 disc cutting lathe (with SX74 cutter head)
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39:. Disc cutting lathes were also used to produce
23:Presto 8N Disc Cutting Lathe (1950) used by the
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25:Canadian Broadcasting Corporation
128:Neumann VMS70 disc cutting lathe
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111:Victor Talking Machine Company
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207:"Neumann Celebrates 75 Years"
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271:. Audio Engineering Society
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59:, sent through a cutting
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118:Georg Neumann & Co.
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73:direct metal mastering
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236:"Disc-cutting lathes"
158:"The Cutting Machine"
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292:"He Who Lathes Best"
265:"An Audio Timeline"
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37:phonograph records
33:disc cutting lathe
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57:audio signal
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211:Mix Online
144:References
275:8 October
246:8 October
217:8 October
190:8 October
163:8 October
105:In 1924,
61:amplifier
335:Category
51:Overview
43:and for
269:AES.org
82:History
69:lacquer
307:12 May
65:stylus
295:(PDF)
309:2022
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