Motional Feedback Disk Recording System DesignIn 2015, J. I. Agnew started developing a high-end cutting amplifier for disk mastering systems, to be used with motional feedback stereophonic cutter heads. During this process, he investigated the design and implementation problems of such transducers in great detail. As usual, he documented his progress, which evolved into an engineering report, titled “An Investigation of Motional Feedback Disk Recording System Design”, which was accepted for publication in the November 2018 issue of the Journal of the Audio Engineering Society, following the customary peer review process.
This is highly recommended reading for anyone developing, restoring, or repairing disk recording equipment or trying to understand how this technology works.
Physical copies of the journal can be obtained directly from the AES Publications Department (firstname.lastname@example.org). It is also available online: http://www.aes.org/e-lib/browse.cfm?elib=19872
Citation: J. I. Agnew, “An Investigation of Motional Feedback Disk Recording System Design”, J. Audio Eng. Soc., vol.66, no. 11, pp. 966-978, (2018 November).
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