| Descriptors | Recording systems, Sound recording, Sound reproduction, Analogue recording methods, Recording equipment, Audio systems, Audio equipment, Recording media, Phonograph records, Compatibility, Diameter, Centre of gravity, Rotational motion, Analogue signals, Stereophonic recording, Grooves, Recording characteristics, Magnetic reproducers, Record-players, Recording equipment components, Gramophone pick-ups, Interchangeability, Dimensions, Colour codes, Performance testing, Testing conditions, Power measurement (electric), Velocity measurement, Ratings, Rotation velocity, Frequency modulation, Time measurement, Signal-to-noise ratio, Sensitivity, Signal level, Frequency response, Test specimens, Graphic representation, Marking, Tolerances (measurement), Performance |
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