Descriptors | Audio equipment, Audio systems, Audiovisual materials, Video tape recorders, Interfaces, Voltage, Standardized parameters, Analogue signals, Electrical tolerances, Electric cables, Electrical insulation, Electrical resistance, Electric conductors, Inductance, Marking, Output impedance, Network parameters, Ratings, Acoustic signals, Rated voltage, Video signals, Source impedance, Electrical impedance, Signal level, Radio receivers, Control signals, Microphones, Audio amplifiers, Amplifiers, Gramophone pick-ups, Loudspeakers, Headphones, Electric power systems |