M
machine code or machine language See computer language.
magic-eye tuning indicator Same as cathode-ray tuning indicator.
magnetic amplifier A device consisting of one or more ferromagnetic cores with windings so arranged that alternating current in one winding can be amplified by virtue of the non-linearity arising from magnetic saturation of the core. See saturable reactor.
magnetic axis Of a coil carrying current, the line of symmetry of the magnetic flux pattern.
magnetic bubble In a thin layer of permeable material magnetised across its thickness. a domain in which the magnetism is in the opposite direction. A bubble can be produced by passing a current pulse through a looped conductor. The diameter of a bubble depends on the thickness ...
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